First off, it is good to see somebody following up on their own comparison instead of just asking for information and semi-blindly trusting the information given (i.e. what I always do).
Second, I understand that the Mutant hooks more than the Deuce...that's because it's supposed to! The Mutant is a fairly strong particle ball (from a company who has stormed to the forefront in particle coverstocks as of late) whereas the Deuce is a very strong reactive resin ball. I myself cannot offer a sound comparison of either ball (as I have not thrown either the Mutant (but have thrown the Freak) or the Deuce (which I may pick up as a v2 sanded replacement, that or a Turbo Diesel or a Top Fuel...any suggestions??)) but I can offer a decent explanation of your fairly sound discovery.
It would be unfair to compare those two balls based solely on coverstocks...now if you are just looking for pure hook, obviously the Mutant is the choice, but it's a Track particle ball, and all particle balls seem susceptible to death.
Supposedly the Phenom is going to outhook all of that, and apparently it does, but I can't access the quicktime video of it from Track's site for some reason. Hopefully, Storm will come out with a particle X-Factor (which would be logical in the line, especially following the Trauma trend...x-factor:trauma-er, deuce:trauma, re-loaded:recovery, particle x-factor:response...but we'll see)
So once Storm comes out with a ball that is a solid particle in the X-Factor line, or once Track comes out with another reactive resin ball in ANY line (hopefully the Darkside will stay now as it seems to have some potential) then we can have a very fair comparison, not that yours isn't totally just, it's just kinda unfair to expect a resin ball to outhook a particle ball.
Andrew Loose
Illinois State University Men's Team