RE: World Models Mach II ??????
Yep, excellent plane. Had an OS 46 LA on mine, and found a 10x7 prop was a perfect match. Now I upgraded to an Evolution 46.
I totally re-did mine with a turtle deck, canopy, covering and new gear. I did use the screws but also added a little epoxy.
It is light, and doesn't like too much wind.
Have fun with it.