I actually like the skipshift - have been used to it since the first "CAGS" on a 96 Z28. In my GTO and my Z28s, it almost never activated, because I always short-shift into second unless I'm doing a starsky & hutch burnout.
Both short-shifting and hammering in 1st gear disables the skipshift.
In stoplight / sluggish traffic I intentionally let the skipshift engage - I find it convenient in that situation.
Also, I bet you'll be able to disable the skipshift with a resistor and a couple of wirenuts anyway? And some duct tape!