So first of all, I apologize if this is posted in the wrong thread ("Basses" as opposed to "Technique") but I think this is more of a bass issue than an overall technique issue as explained below… I have this slap issue that is, (for me) unique to my G&L Tribute L-2500 pickups. (note that I realize this other models may have this type of pickup, yet, as I have no idea which of the G&L models, or other basses for that matter, have the same pickup build, I am using the term "unique" loosely). I noticed that the pickups kind of "sink" into the body when pressed on. That is they aren’t fixed rigidly, and instead are held up with springs of some sort, so that when you press down on them they retreat toward the body. As a side note: I haven’t the faintest clue as to why they are designed this way, and if anyone here could enlighten me, I am very interested in what that could be… Now, on to my problem. Whenever I attempt to slap, I would get this massive cracking sound as the heel of my thumb came flush with the bridge/strings. At first I attributed this issue to the fact that it was my first (non-fretless) 5 string bass. So I responsibly and prudently read through many other TB forums on thransitionong to 5 string, and the various technical adjustments one had to make under various circumstances. I dutifully followed all the advice and adjusted my direction of attack, hand positioning, etc, and nothing helped. I finally realized that it was the pickup diving onto the body cavity (and its subsequent release), that was causing this cracking sound. It is extremely annoying and I need some advice as to how to rectify this issue. Is there any way to fix/arrest the pickup so it stays in place? Has anyone else encountered this issue and found some way to surpass it? Thanks!