Do any of you guys skew your cartridge in the headshell to any degree to follow arc and sit perfectly squarely in the null point grid ? This is in respect of the Rega Baerwald Arc Protractor. It really isn't easy to follow arc and sit squarely in the grid. I have room for movement in the ADC magnesium headshell I use. Some tips, advise and experience / opinions would be much appreciated.