RE: Throttle pushrod
I think I use pretty much every type of connector ever thought up, either now or in planes past. I like the EZs but I try to always use the metal keeper and not that little round plastic/rubber one. They do develope slop after a time though just like the Z-bend. I like to solder on a dubro clevis to one end of a cable then either use an EZ on the servo arm or solder on the threaded brass extension on one end and a threaded Dubro on that. Most anything you think of will work but you will want to look at other peoples set up to get some ideas of your own to try. I do like cable instead of solid rods though, I use the nylon or Nyrod on my gas engines, it works great for glow throttles too.