I'm running a Saito .91, which is more than enough. I think the .72 would probably do well. I got a good deal on the .91 so I used it. Not sure if there would be any advantage to using pull pull or not. I think it's easier to set up a regular pushrod linkage, but the pull pull has a more positive feel to it. There isn't as much slop in the linkage. As I said earlier, if you need the nose weight, then use pull pull with the servo up front. Otherwise, use a pushrod (4-40, not the 2-56 supplied. It's too weak and will bend) with the servo in the tail.