OK, heres the scenario. I'll detail my set-up and I'd like input as to what anybody would change or add to improve it. The catch is that the budget you have is only $100 to spend.

Bow - Mathews Legacy
String -Zebra String
Rest - NAP Quicktune 3000
Sight - Impact Trio
Stabilizer - Golden Key Tranquilizer
Quiver - Alpine Softloc 5 arrow
Limbsavers - Sims
Arrows - Goldtip XT 5575 Camo
Broadheads - Muzzy 100gr 3-blade
Release - Trufire X-caliper

With only $100 to spend what would you spend it on to get the maximum inmprovement on this set-up?