Hi Michael,

I vote with cruzomatic on the solid pushrods. I'm just finishing a 4*60 (biy kit) and used those exact rods, I don't like the way the nylon type change trim with temp changes.
My $.02, though on the 4*40 I would go with the solid rods, but use the 2-56 size. 4-40 is a bit on the heavy side for a "40"