haven't used the Athlon 8-34, but I do have the Athlon 6-24 FFP Mil Mil scope. It's an incredible scope. However, what are you going to use it for? 34X will show every wobble, every heartbeat, everything will move the cross hairs at that magnification. Even for 100 yards, I don't typically go 24x Yeah, you can see a flea on the dog's butt half a mile away, but finding the dog will be a real challenge.
Just seems like complete and utter overkill for any airgun. My Athlon is on an Impact and still seems a bit much at times.
Then again it depends on what you want to use it for. I'll say Athlon makes an incredible scope.