Inspired by discussion in another thread.
As we know, sim has a lot trouble dealing with focus dashes to get in on him. So I had a look at the frame data (http://wiki.shoryuken.com/Super_Street_Fighter_IV/Dhalsim) and this is what I found.
s.MK has 3 active frames and 14 recovery frames. I’m not sure if the first possible dash frame is after all the active frames are finished, but that seems logical to me.
Some dash frames:
Makoto - 17 frames
Ryu - 18 frames
Chun Li - 16 frames (fastest in game)
Full list at http://wiki.shoryuken.com/Super_Street_Fighter_IV/Universal_Abilities/Dashing
So Sim is at +2 frames at worst. This is key against makoto’s huge dash, since using s.MK will leave you at +3 if the dash cancel is frame perfect (or is it +4?).