I usually start with two passes to test the level of correction. The difference will be end up being how much correction you need to achieve. The cross hatch method which is up and down, then left and right moving at about one inch per second. You will want test a spot to determine which pad and...
Looks like you have a great all around compound in the 3D One. I would try it with your 15mm DA and start with the least aggressive pad to see what level of correction you can achieve with out removing much clear coat. That is assuming you have followed the proper steps wash decontaminate the...