I really want resin dive planes because the thin plastic ones flex a bit and getting the metal in to the plastic to attach them to the control rods dosen't look right. I'm not really worried about the occasional knock to the resin guards, it's more about having the stronger attachment points for rudder, dive and hydro planes on the parts themselves. If I can find brass P frames that are the same scale I'll use them, but otherwise it's resin ...
As a note to this I Emailed MMB and I'm going to send all the parts I decide I want to him for molding ...
Thanks guys for the replies.