Thanks, Rich and Sean, for your help. For info, the best poly score for a C180 listed in the other thread is 8.73 e-14 (excluding the massive effort for R-180).

C180 poly
 

The best poly that I found wasn't anywhere near as good as RichD's with only a 7.228 handle:

[CODE]n: 556940527200132132854208867567328661523961665167691935298836583617867683327352415435587145291214586514910588208005629756713211655009152862726284530753453151223562309591761233828943
# norm 1.275729e-017 alpha -8.292713 e 7.228e-014 rroots 3
skew: 927202172.66
c0: -135350849320673468173229123717499026000998120080
c1: -2736171401669605351391318558592285871356
c2: -7203549918797382432738266325738
c3: 5459180480117558228002
c4: 1571966196307
c5: 1488
Y0: -206367440607612442800823811606989451
Y1: 94792074604985141
[/CODE]

I'll wait to see what Sean comes up with before I ask Max to spin.

C180 poly
 

[QUOTE=richs;520973]The best poly that I found wasn't anywhere near as good as RichD's with only a 7.228 handle:

[CODE]n: 556940527200132132854208867567328661523961665167691935298836583617867683327352415435587145291214586514910588208005629756713211655009152862726284530753453151223562309591761233828943
# norm 1.275729e-017 alpha -8.292713 e 7.228e-014 rroots 3
skew: 927202172.66
c0: -135350849320673468173229123717499026000998120080
c1: -2736171401669605351391318558592285871356
c2: -7203549918797382432738266325738
c3: 5459180480117558228002
c4: 1571966196307
c5: 1488
Y0: -206367440607612442800823811606989451
Y1: 94792074604985141
[/CODE]

I'll wait to see what Sean comes up with before I ask Max to spin.[/QUOTE]

I was away for a few days and my machine shutdown due to overheating. It’s back up and running - should have a poly within another day or two. No guarantees on its quality of course...

C180 poly
 

[CODE]# norm 1.392610e-17 alpha -7.107077 e 7.703e-14 rroots 5
skew: 59718475.18
c0: 135687423718452464744271139786868298102683115
c1: 8543698457180748720504071722344192927
c2: -305859499552043872236692487965
c3: -9070438086796045855559
c4: 110232185861322
c5: 541200
Y0: -63458559100577551733225835963168128
Y1: 38135453612306717[/CODE]

Best hit in the c5 < 1M range, and it is less than spectacular.

I will try 5-6M next,.

C180 Poly
 

Nothing better in 1-2M. Starting 2-3M.

C180 poly
 

[QUOTE=RichD;520676]Early baseline.
[CODE]N: 556940527200132132854208867567328661523961665167691935298836583617867683327352415435587145291214586514910588208005629756713211655009152862726284530753453151223562309591761233828943
# expecting poly E from 7.95e-14 to > 9.14e-14
R0: -51339310176802195647918234796070211
R1: 307307686784268491
A0: 10500314747871565996625552457853698964170320
A1: 225275976148768244904479980725708308
A2: -267724887937708298946752397360
A3: 4718334196608579062471
A4: 587015698064354
A5: 1561560
skew 23443607.85, size 1.309e-17, alpha -7.506, combined = 8.302e-14 rroots = 5[/CODE][/QUOTE]
Good news on this one:[code]Y0: -51339310176864392572569563248769174
Y1: 921923060352805473
c0: 386804279219644546195012232002538652091669
c1: 37134182132979715713823447748737377
c2: -90148538518176144374597270731
c3: 4243742384569480870383
c4: 1756306361996862
c5: 14054040
skew: 8201206.24
# size 1.309e-17, alpha -7.506, combined = 8.412e-14 rroots = 5[/code]

C180 poly
 

[QUOTE=swellman;521016][CODE]# norm 1.392610e-17 alpha -7.107077 e 7.703e-14 rroots 5
skew: 59718475.18
c0: 135687423718452464744271139786868298102683115
c1: 8543698457180748720504071722344192927
c2: -305859499552043872236692487965
c3: -9070438086796045855559
c4: 110232185861322
c5: 541200
Y0: -63458559100577551733225835963168128
Y1: 38135453612306717[/CODE]

Best hit in the c5 < 1M range, and it is less than spectacular.

I will try 5-6M next,.[/QUOTE]
A bit better for this one too:[code]Y0: -63458559100577006358103726364808311
Y1: 76270907224613434
c0: 16976193071200857926286687333835595264128680
c1: 2133736174961096968869838455974181402
c2: -153124256637128964599440310305
c3: -9064131257981366179871
c4: 220541768734644
c5: 2164800
skew: 30984641.43
# size 1.152e-17, alpha -7.107, combined = 7.769e-14 rroots = 5[/code]

C180 poly
 

[QUOTE=richs;520973]The best poly that I found wasn't anywhere near as good as RichD's with only a 7.228 handle:

[CODE]n: 556940527200132132854208867567328661523961665167691935298836583617867683327352415435587145291214586514910588208005629756713211655009152862726284530753453151223562309591761233828943
# norm 1.275729e-017 alpha -8.292713 e 7.228e-014 rroots 3
skew: 927202172.66
c0: -135350849320673468173229123717499026000998120080
c1: -2736171401669605351391318558592285871356
c2: -7203549918797382432738266325738
c3: 5459180480117558228002
c4: 1571966196307
c5: 1488
Y0: -206367440607612442800823811606989451
Y1: 94792074604985141
[/CODE]

I'll wait to see what Sean comes up with before I ask Max to spin.[/QUOTE]
Also spins up a bit:[code]Y0: -206367440607300791105462017759518111
Y1: 189584149209970282
c0: -18053042518923022559887047732305082268088242040
c1: -695840236769931200684454368333444764499
c2: -3574801170695957239365819560049
c3: 5480014186093040820722
c4: 3192853963814
c5: 5952
skew: 485852256.95
# size 1.057e-17, alpha -8.293, combined = 7.291e-14 rroots = 3[/code]

C180 poly
 

[CODE]# norm 1.387593e-17 alpha -7.641889 e 7.668e-14 rroots 3
skew: 24521648.83
c0: -718176496328641623326104999359625183020288
c1: 3843608004150607915244198545091486952
c2: 249879934488834888531348823486
c3: -10222344643244123693793
c4: -824746073151678
c5: 5002776
Y0: -40674249919094342852169760647477689
Y1: 27890148105301573
[/CODE]

Still can't find an 8 handle!

Searching 6-7M next.

Finished 6-7M but found nothing worth reporting.

Now searching 7-8M.

C180
 

Continuing thanks to Sean, Rich, and Max for their efforts on this C180 poly.