I'm with you on the dremel. I have one, plus an angle grinder, that I've thought of using to grind down the lower portion of the boomerang, the end tip of the boomerang, and the plastic on the inside of the lower jockey wheel (where it rubs the swingarm when it eventually gets rotated up into the linkage).
The best I have been able to do is this...
Take the boomerang and rotate it on the adapter so that when it takes an impact instead of rotating clockwise IN the adapter that the whole adapter and boomerang rotates as a whole. This seems to make it harder to rotate the whole thing because I then torque the bejesus out of the drive side external BB cup and don't have to worry again about fiddling with both the adapter AND the 3 mounting bolts when it eventually rotates again.
Aside from that I may ditch the SRS completely and get something that can be tucked up out of the way better. Maybe an MRP? I dunno, but it is basically an "every ride" kind of thing because I tend to plow into stuff.