I've personally cut the small ends of my stock bump stops when I installed my Swift lowering springs. While that affords you more travel before touching the bump stops (about 3/4" ~1" or so on the compression stroke), that would result in a more abrupt change in the rates once the suspension is compressed to the point of touching.
This kind of explains the increased understeer (really not that abrupt) I'm getting at turn in after installing the springs. Although, if I hadn't cut the bumpstops when installing the lowering springs, the bumpstops would have engaged much sooner in the compression stroke... this will theoretically induce understeer even sooner with less cornering force at a more gradual rate vs. a stiffer, cut bumpstop.
Maybe I should have done like dezoris and torched them.
