Ok, I love the new Hi-Fi. It's a very comfortable ride, I'm extremely happy with it. I'm not happy with the tires though. I'm running Maxxis now, they seem to be great for regular trails without any downhills but as soon as I hit a steep downhill I can't seem to get enough bite. I end up with rear wheel locked up and the tire isn't grabbing anything and I go faster than I want to be going. This has caused a couple endoes already. I like the looks of the Velociraptor's rear wheel. Anyway this could help with my problem? It's also a lack of confidence/skill, I'm sure but any suggestions for a rear tire with lots of grab would be much appreciated.