I wouldnt hesitate trying the either thing on a set of slicks. The either shot still only inflates em to like 1-2 lbs, low enuff that if your not ready w/ an air chuck, it will fall back off the bead.
As far as bead locks, I dont know personally ...yet. The new car has em but havent try them yet. I was under the impression that the beads are compressed to the rim thru the beadlock lock ring.
Craig