What ferrule would I use for the Cleveland RTX 2.0 CB Wedge? I’ve reamed it out to .370. Would it be a collared ferrule?

same question for Ping G Hybrid – what ferrule in the event I ream it out the hosel to .370? what ferrule if I sand the tip of the shaft from .370 to .355? also in either case would I use a collared ferrule?

Also, any problem using an iron shaft in the Ping G Hybrid?

thanks guys,