took the freehub apart and it was pretty gunked up. fulcrum uses a 3 pawl system and two of them were lying flat and flush with the hub, caked in super thick sticky grease. i cleaned it up and put a much lighter coating of grease on there. the pawls seem to spring right back into place now. it must be a hub issue. two weeks ago, it was indeed causing the chain to drop when coasting so something was sticking for sure. we'll see if this does the trick. if not, im dropping this pair of wheels off a bridge and letting them sink to the bottom of the river. i have a back of set waiting to go just in case....