I downloaded a template from Vinyl Engine that works pretty well. I have a Lyra Skala on the end of a Jelco TK-850L. The VTF get adjusted, then the cartridge is aligned against the template. Then I listen, set the VTA and start the process again to verify VTF and alignment. If it VFT or alignment has changed, or needs changing, The process repeats until everything is set and sounds "right."