I think it would be safe to bet that 75% of modified sbm's geometry is less than sufficient . it is something very important but not discussed in depth enough . someone should do a thread on installing a B3RE kit on a messed up geometry engine to make it right .I find this very interesting and I have read all of B3RE info on his site it is a very interesting read for sure that I need to read 4 or 5 more times to fully understand . I have seen many nice rockers over the years that were ground up or ruined in my opinion and it's from just not understanding what's going on .