The CA hinges are crap. Mine sheared in half when I bumped my elbow into an elevator. I replaced mine with some Great Planes non-CA hinges. As for the prop for your Evo. something in the 17-18" range would be good. I like APC, but they get pretty heavy in the larger diameters. I'm not familiar with those servos, but as long as they're over 80 oz.in., you'll be fine.