The Model Tech ARF looks to be similar in size to the WM Stang, which flies quite well on a 72. I think that the WM is just a tad lighter than the Model Tech, so I think you'll do fine with that engine. BTW, what's the Model Tech version covered with? I've got a Kyosho and it's sticky backed. I think that the OK/EZ is also covered by sticky backed, but the WM uses iron on...