Here's something on the subject:
Split still favorable in high TC
Posted By: Karl D
Date: 14 Jan 06, 8:50 pm
In Response To: I think yor're missing the point (Stealth Bomber)
For TC up to +17, I get split significantly more favorable than double for 44 vs. 6, see EV table below for 6D, DAS, S17. H17 also favors split. This is for Omega II, don't remember if the point values were different between AO2 and Omega II.
I get an index for split vs. hit of -4 for S17 (for H17 lower than -8) so any deviation from BS for this play would be really rare.
======= EV vs. TC Hand # 2 Stderr= 0.0190% =======
Hand 2 - PLAY= INDEX SPLIT vs. DOUBLE DUP= 6 Player= [ 4 4 ]
Count SPLIT DOUBLE
:
+0 15.297% 8.646%
+1 16.988% 10.335%
+2 18.399% 12.027%
+3 19.835% 13.749%
+4 21.492% 15.523%
+5 23.208% 17.474%
+6 24.982% 19.287%
+7 26.712% 21.226%
+8 28.294% 23.045%
+9 30.024% 25.095%
+10 31.880% 27.064%
+11 33.640% 29.004%
+12 35.283% 31.034%
+13 37.156% 32.968%
+14 38.966% 35.159%
+15 40.907% 36.994%
+16 42.414% 39.013%
+17 44.234% 41.243%