Depends on the mount type too, if you have PCB-mounts, even 1 removal is too much, switch tops pop off occasionally
Yet with regular plate mounts, if you didn't have issues on the first removal, you are probably safe, I try to avoid keycap removals as it stresses the switch top a bit
+ the KUL's have cherry stabs, so to remove stabilised keys you are likely applying 3x force, the stabs will likely be the first to fail, so remove them slowly, not an issue with Costar's tho