Got some STI HD3's and 30 inch roctanes. I vowed I'd never buy bigger tires, hopefully I won't see a huge difference in stability being up higher, which is my only concern. Anyone have roctanes out there? How do you like them? I wanted an 8 ply tire, we ride on a lot of hard trails and I've seen too many rocks take others out of action. Hoping the tires work out for the best.