Yuppems, I second everything Dave said. TalonSS with a 24" .22 barrel, power adjuster at 10 and never adjusted afterwards, power adjustment is in the tophat....need a chrony or you are wasting your time. Kodiaks much over 950 and the groups start opening up, never shot Eui Jins, and anything else is pretty much too light. Raw FPS means absolutely NOTHING if you never hit what you're aiming at...1000FPE with a pellet that hits the tree instead of the squirrel wont work, unless you're hunting trees:) My Career 707 will launch pellets supersonic all day long, but I never shoot it that hot....near or beyond the sound barrier with a diablo pellet will not be accurate, the design is for subsonic shooting.
Fill the gun to about 2900, set the power wheel to 10, shoot across the chrony. If you are beyond 950 to 1000fps, loosen the tophat set screws, turn the top hat in (clockwise) till you have maybe a .050" gap, then start shooting over the chrony, adjusting maybe 1/16 of a turn out (counter clockwise) taking a shot between adjustments, till you are around 950fps with a 24" barrel...do NOT tighten the set screws with each adjustment, they will put dents in your valve stem. When you get it to that 950 fps, loosely tighten the set screws. Fill back to 2900, start a chrony string and see how it looks, should stay around 950 for quite awhile, maybe losing a couple FPS between shots. Then tighten the set screws the rest of the way...again, be careful, if it's a Condor valve you can crush the valve stem if you tighten too much. Go shoot some groups, I can almost say for certain they will look better, assuming there are no other issues with the gun. The barrel set screws are notorious for coming loose and creating wide groups, breach o-rings tend to wear and leak creating loose groups (get some 90 dura o-rings, there's a guy on the Talon forum that sells them) and of course a bad scope it a bad scope. I watched a kid knock a golfball around with a Condor last month from close to 70 yards consistantly...it can be done. Good luck and happy shooting!