Accuracy Slotting Question...

Which is better 60-65% Accuracy slotting OR 40% Accuracy slotting with a Kismet +6% IO?

Edit: Sorry, I somehow thought the second example was 50% accuracy at first, not 40%. It's actually a decently big difference in this case.



Overall, it's a bit of a toss-up. It's not really an earth-shattering difference either way. If you'll only have 40% accuracy in all powers in the latter cases, I think I'd go for straight-up accuracy. Somebody correct me if I screwed these up.

Your final to-hit chances against an even-level enemy assuming the power has a base 75% accuracy:

Enemy Defense   65% acc         40% acc + 6% ToHit
0%              95%             95%
25%             82.5%           78.4%
50%             41.25%          43.4%
75%             8.25%           8.4%
100%            8.25%           7%

Enemy Level   65% acc         40% acc + 6% ToHit
+1            95%             95%
+2            92.4%           86.8%
+3            79.2%           75.6%
+4            64.35%          63%
+5            49.5%           50.4%