The juriy's out on what waxes to use or not use. To focus on one point you make;the frame protection,over-all. I'm speaking of INSIDE the frame,perhaps someone will respond..?? I read here in BF,a member mentioned "fish oil". The original post was about steel frames in general,not protection as such. I also read that a optional protective process offered by some shops,isn't worth it.I don't understand that either.I'll see to some sort of protective,inside the frame measure while my bike on order is brand new.I do believe it's worth it,for piece of mind,I've had bikes show rust-signs from the inside after ten years.