Nah. I throw Champion (Pro Line) Gremlins, and, IMO, they're less overstable than Rocs.

Under the rating scale used during the time the Gremlin was on the market, Rocs were rated 4/4/0/+2 (speed/glide/high speed turn/low speed fade); Champion (Pro Line) Gremlins were rated 5/3/0/+2.

The fact that the LSF numbers are the same is probably more a reflection of the fact that Innova uses only whole numbers in its rating scale than it is a reflection of their relative stabilities. IMO, the Roc's "+2" would have been in the mid- to high twos, whereas, again IMO, the candy Gremlin's "+2" would be in the low twos. YMMV, but I throw Gremlins when I need something faster than a Roc or that absolutely, positively, must finish dead straight. (Note that I have four unthrown Pro Line Gremlins in my backup stash, two in my field practice bag, and one in "game" bag, so I'm not comparing the stability of beat, two year old Gremlins to new Rocs.)