Pops
Absolutely correct, every time you change one parameter it effects everything else. I set VTF after all other adjustments are made ie the cart is aligned with a MintLP. I only adjust the cart screws to get the overhang and align the cantilever with the protractor and then tighten the cart screws and I am done. Last of all set the VTF. If you using shims in the head shell to adjust VTA the cart screws might come into play, OTW, adjusting cart screws has IMO little to do with VTF or even VTA.
YMMV
Cheers
