I don't have Sports Package, so I don't have SRM on my Z.
So I can't vote on this one but I think it doesn't matter if I chip in.
The technology behind the SRM is amazing, however, the more you use the SRM, the more you will depends on it, at least that's what I feel after reading the 4 pages of this thread.
And, the more you depends on it, the more rusty on your heel-toe.
But hey, aren't heel-toe the best part of driving a stick-shift??
Doesn't trying to do heel-toe at your best give you the most pride??
Doesn't it make you feel better if you tell yourself "Man, I can heel-toe like a pro... yea." ???
Maybe I am a bit old-school thinking or stubborn
But how can I let the electronic 'kill' the 'art' of driving a stick-shift.
That's why I didn't even bother to think about the sports-package when I order the Z: I will choose a set of 19 with the style I like, I won't track the Z so the sports-brake is not within my concern, and the SRM... you heard what I said. LOL
Just my $0.02, of course, you like it, use it!! But let your heel do some exercise sometimes. LOL