Re: Can this work (crank balancing sorta)
Going to be hard to actually balance since you only have access to one side of the crank. I pretty much did what you're thinking of on my crank, just made a few divots on the crank weights with a 1/2" bit. Not a true "balance" but it helped me get past my 31mph wall.
Straight tubes suck, the beauty is in the bend.