listen to Paul39; no where in your post did you mention what you SEE when you lok through these and this is where you should be making your decision. Just the usual checks that you'd make if you were buying a rifle scope; how tollerant is the picture when you move your head around? Which has the best eye relief FOR YOU. You know the stuff.
You can prepare well enough at your home range and a borrowed scope or a buddy and his scope (or one of your take off rifle scopes) that you can go compete (especially at reduced range matches of 300 yds and under) without needing one. So go to this match and ask around when you see models you're interested in and make the right decision.
I hope this helps.
Ed
