I'm using a Stinger BB mount right now, but with the new Shimano 12-36 cassette and a 32 front ring I think I might be able to push those gears. The Straitline seems like a great option because it has no bearings. It's fricking muddy here and bearings just get wrecked. I know that DW put on his blog that running a 1x9 setup isn't a great idea due to some sort of complicated reason, but I've wanted to try this for a while now. Anyway, anybody try this yet?