After a bit of research, someone stated they spoke to Ron and was told to set it up how you’ve said, adjuster colar on top. Made the switch and haven’t had any issues. To answer your question
@Ganjie the foam pads that were on top, are now not needed, from top to bottom it should be: adjustable colar perch, spring, then the oem plastic seat.
At least that is where my research has led me. So far no issues, about 2k on this setup also running the whoosh coils