The build feels too unconstrained for this primary to be good. I can't imagine two separate arms pushing the chain, nor a dipper build sequence with one bonder, so I'm ready to be surprised.

There's likely a few R lying around by swapping actions, and 6P saves 54~56 cycles (10x5 for false grabbing iron and 4~6 for ghost grabbing cdr), but this is probably slower than two arm variants with iron suppression so I'd better type some notes instead I guess.