These questions seem to cropping up quite a bit lately, so I'll jump on the bandwagon. I've got a Deore MT-62 RD and I'm wondering if I can use it to shift 8-speeds with the Shimano 8-speed bar ends. The RD is technically designed for 7-speed, but Velobase says it will shift 8 fine. Is that all I need to know? No problems here?