Pretty sure he meant HSA.. I've come to like it. I'd also recommend the flashpaq, maybe try posting a message in the nearest regional forum "looking for someone with a manual trans flashpaq tuned JK in Toronto", perhaps there's someone near you that has one and will let you take it for a spin (can't use it to tune more than one at a time).
I found the throttle control was terrible, slight press would make the engine race so it was very difficult to control the engine RPM's while engaging the clutch. The flashpaq made a HUGE difference in my opinion, the throttle seems more linear now.. I can easily rev the engine to any RPM's and hold it there.
OR.. I'm sure you'll get used to it.. when I got my flashpaq I had to un-get-used-to-the-crappy-throttle and it's been great since then.