I bought a 2008 GT500 recently and the pull seems much harder than on the newer elite bows. It has 70# limbs and is set up at 29.5" which works OK for me. I took the bow to a local archery shop and he couldn't find anything wrong with it.
A tech suggested I put new Answer cams and new strings and cables on it to get an easier draw. He wasn't sure of the cost, maybe $200. I guess the Answer is built from the GT500 bows and so the new cams can be put on the GT500 limbs.
Does this sound crazy? Anyone tried it?