Agreed, I bought a used ECU out of a parted out SVX to do the crush mod, and saw absolutely no difference.
Couple things I noticed however, is mine does this on a fairly regular basis as well. However fuel seemed to be the biggest key for it to go away. I used to use nothing but 91+ octane, but after much research into the whole attitude per octane talk, I changed to regular. Within a week the hesitation started quite noticibly, even people I car pool with saw the difference. I changed to silver grade gas, and the problem went away.
On a side note however, I don't drive off right away either. The car will be sluggish if you just go for it after starting it up, but every car I've ever had worked the same way. Driving your car without letting it warm up a bit is a bad thing anyways, be patient. If you can't give it the minute to warm up, go buy a remote car starter.
