I've been using the monk in a campaign, as a front-line grappler. Granted, Part of what lets me go toe to toe is the fact that it's gestalt with a psion (empathetic feedback is awesome) but the BAB is perfectly fine as is. I have a +13/+13 flurry at lv 7, and do 1d8+2d6+9. Granted, it's a high power game, but the enemies are fairly tough, and I've managed to grapple, disarm, or flurry for decent damage pretty much at will. Even disarmed a large opponent. that might be due to my DM getting rid of the -4 penalty a sai has to disarm though. +20 disarm total.