Hehehe... Great idea. In fact, my knife has a permanent screw-hook on top at the balance point. That's what it hangs from in the garage.
To try to answer the original question, Mine lateral and fore-aft balanced with the TT 46 Pro all the way forward and the battery out in the wing as far as I could get it. If you only have to add 10g to the tail for fore-aft balance, that's not too bad. I'm guessing you can't move the engine back any more?
Warning: It flys great at the recommended CG 4.5". When I take off the 12.25x3.75 APC and put on a wood 11x4 it shifts the CG back a bit and you can really tell the difference - it gets trickier so be careful to move the CG back slowly.