I used diskpart to clean the MBR off the card.
On WinUAE with Classic Workbench, I replaced the SCSI.device, renamed the SCSI device name to uaehf.device and enable Smart File Format. I made the first partition below 600mb then made the other partitions and set them all up for SFS and deleted FFS. Then I formatted using SFSformat. Finally, I copied the system files of Classic workbench over to the first partition of the card.
Do I need to snip a pin somewhere. I've seen that mentioned.
Also, I heard CF cards were pretty finnicky.
trust me compact flash are the best no mucking about with uncompatible adapters and snipping pins(not needed) I see you have seen some youtube tuts some are good but to be honest it gets complicated when start renaming stuff you dont need to do that when partitioning SD or cf problems easily arise when trying to boot on a Amiga.
And download easeus partition home(free one) then you dont have to muck about with diskpart much simpler and all with the mouse, any help just ask.
And use Dopus to copy your winuae system to cf its bullet proof !