Looking to build up my new frame when it comes in and I would like to get some feedback about the Havens. How bombproof are they... I ride pretty aggressively (fast, table-tops, 5' drops, etc.) and living on the east coast there are a lot of rocks, it would be great to here how they're holding up for those running them. Also any one running the I9 AM wheelset, if so how are those?