Okay...I tallied the scores and the OS 50 SX is tied with the OS 46 AX with the Thunder Tiger Pro 46 BB ABC in a close second...

OS .50 SX: IIII

OS .46 AX: IIII

Thunder Tiger: III

K&B .61: I

K&B .46: I

Magnum .46: I

Super Tiger G-51: I

Please let me know if I forgot any engines/votes...

So the ringed .50 SX is good?