The overhang is adjusted, for the SME and very few other makes, by moving the base of the tonearm.
For everybody else, the arm is mounted with the pivot at a specific distance from the spindle, and the fine adjustment is done by moving the position of the cartridge in the headshell.
Your Grace should be mounted with the pivot 222mm from the spindle.
Then you should use an alignment protractor to properly position the cartridge. https://www.vinylengine.com/cartridge-a ... tors.shtml
The 2-point protractor can be used with anything, or you can use an arc protractor. Your arm uses the same mounting distance as the Rega arms, being nominally a 9 1/2 inch arm, so you could use one of those.
As for the Stevenson/Baerwald/Lofgren choice, they all work. Each has a slight specific advantage. You could try all three, and see which you prefer.
Keep them spinning.