Common problem: drop targets that don't drop on hard, solid hits. Seems particularly an issue w/ newer sterns, or games that have them up front on the playfield (GB, CC). Two questions:
1. How have you solved this problem on various games? Stronger springs seem an obvious solution, but I just put those "GB Fix" springs on my bond and if anything it's worse. I've heard folks say stretching/weaking springs helps sometimes, though that makes no sense to me. I've seen various other solutions for different games, like triming the ledge on some old games, and of course "play around it."
2. What sorts of things can really be the issue here? The obvious, and most common I could see would be not enough tension in the down spring to pull it past the lip before it riccochets back on a hard shot, but there must be more going on here. Most games also have a compression spring to push it forward - can you weaken these maybe? A plastic holding lip too long could contribute too. Must be other things I'm not thinking of.
Looking to solve this aggravation on my fancy new toy, but also to improve my general approach to future battles since it's clearly not as simple as "stronger springs."