I had a 2001 Grizz. It was pretty loud, but to be honest I didn't know as much about tuning a bow as I do now. I put a MM string on it and it started behaving.
Just going by point on distance with the same arrows, it was faster than my '59 and slower than my '62 Grizz. The '59 is the best behaved of the bunch and the '62 is quite possibly the last really sweet shooting Grizz made
But that's just me talking with my 30" draw... it's not real comfortable for me to shoot bows under 62" for any length of time.