You've been brainwashed reading too many things here on AT :tongue:. Don't touch a thing. You already answered why you should NOT touch anything, i.e. the bow is shooting "unbelievably well". An 1/8" difference in bh can be caused by a myriad of things, not least of which is you may be shooting the bow at a different draw length or draw weight from that used by the company to arrive at the bh spec.
I have no idea what my bh is, nor even what the spec is for my current set-up. Not critical to getting the bow shooting well. All I know is the draw length is good, cams are timed and I have the bow set for the draw weight I want.
Just my opinion...........
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