Just remind the OPer that Paul M's winning deck, once again, used BSC. In fact, the final game of the tournament was T1 Tinker for BSC.
Any other tinker target would've also beaten me that game. So I don't think this really helps BSC over anything else.
Apparently you scoop to Darksteel Myr too? LET ME FIND OUT NOW!?!?!?
Well not every i guess. I probably would've had time to Jace bounce him before he killed me, but I had no answer for darksteel ingot, welding jar, ect.
All joking aside though I wouldn't want BSC in a deck running bob. As low as the odds may be to flip it any chance greater than 0% is too high for taking 12 damage. The weakness against jace/metamorph/tangle wire and just plain drawing it are also there for BSC. Myr battlesphere to me seems like the best tinker target hands down.