Been using my b.o.a.b for a while now and a rubber is only lasting me 2-3 days due to something leaving little slits when using the b.o.a.b which in turn is leaving lines all over the glass. Must have been through 10-15 rubbers since getting it. Any recommendations for b.o.a.b’s that don’t destroy rubbers. Been looking are the unger ninja and Moerman b.o.a.b