Quoted from Dono:I just replaced my Target Alpha banks - and also agree that you really don't have to cut anything. What I did to provide more room in the frame to get those targets in and out, is replace the machine screws that hold the frame together, with longer screws, and just screwed them in enough to hold... that way the frame gives much more, allowing the targets to come out with ease... I did all that work in about 25 minutes, easy squeezy - with no cuts.
Also a proud owner of a Jumping Jack - long term owner; still play it too.
I'm still a relative newbie to the hobby (6 months and only 5 games) and I just swapped out all 9 drop targets on my Vulcan project over the weekend and it went fine without any cutting. I agree that if you loosen the frame (either with longer screws as described above, or just loosening the existing ones as far as possible without removing them, the old targets come out / new targets go in relatively easily). This was not hard. Somewhat tedious, and took me about 40 minutes per bank, but not hard and no permanent mod to the game.