BT B+K has only 1 or 2 good points to it, being SCD and combo damage, but it's not worth it and opponents looking for this will probably punish you as hard as possible for throwing this out like you think it'll work... If I'm facing a BT Maxi I like running at them to see if they throw out BT B+K just so I can teach them to never use it again... And 1A is +3 on Hit & CH, frames don't lie only people... BT B+K, 66B+K & BT B+K, 236A are my options if it connects, I think BT B+K, 44B is a tech trap but it might be a combo I don't remember... The only time I ever want to see BT B+K is comboing into the Unblockable (4B+K), or in a wall combo... BT A*BT 2B*BT 2A*BT 2K are all better options, BT A is -2 on grd and if guarded I follow up with 2A and yes it can work (TC under i11 Highs), BT 2B catches ground rolls and crouching opponents my mid of choice, BT 2A is a fast TC from BT'd netting +4 on hit, and BT 2K is a risky option being punishable n' all but for Maxi it's worth it for the mixup, and I didn't mention this until now but BT Throw is also a good option...