Thank you, yes please . Jademcian and others helped me sort out a bug in Enhanced Basic Attack modeling. Apparently "free" really means "discounted". Instead of EBA iving a free basic attack, it resets the CD and gives -25 focus for the basic attack. The result is that a normal basic attack is free, but a "wild hunt" basic attack (where you pay 2x focus for 2x damage) still costs 25 focus. Celestalon confirmed the behavior on live (and acknowledged that the tooltip is misleading.) I've changed simc to match that, resulting in ~-300 dps for mythic, so it's not a big deal. I think the main value in enhanced basic attacks is in getting more frenzy stacks. I'd love ot see a log that verifies that EBAs proc frenzy stacks (I currently assume they do).
While doing this, I also found a small bug in which even the free basic attack was waiting for there to be enough focus for a normal basic attack. the net effect is in the noise, but might occasionally affect the timing of basic attacks and thus the timing of frenzy stacks.