You're right, HSA is easily disabled.

Not to pick on the 6spd, but anyone else think the shifter could be a little less "rubbery". It is not terrible but you have to admit it could be better.

I replaced the stock shifter in my 2006 Mustang with an MGW shifter to make the shifting more precise. But I also understand it may be a bit early for any alternate shifters for these cars yet.