What the verdict on the best heavy duty rotors these days? I don't really care about weight, since this would be going on my e-bike. As it turns out, constantly pinning it up and down SF hills and stopping from 25+ mph on flats while me being 200+ pounds on a 50+ pound bike is overwhelming the stock 7inch rotors a bit more than I'd like. The fork/bike (Specialized Vado) are only rated for 7inch, so I'm hesitant to throw 8inch rotors on there. I figure if I can find something thicker/more solid that might help with cooling and warping. Thoughts?