So far I have sold three of the Stringray kits and I must say the design and quality of the kit is outstanding! It appears Yellow has stepped it up a notch with preprimed epoxy glass fuse, dorsal brake and plug in fins. The aircraft will handle a variety of gear ( Robart, Springair, Yellow's new version ). A word of caution though....I talked in length to the designer of the Stingray at Superman. DO NOT OVERPOWER this bird. It is designed around the popular MW 54 series engines and can attain very high speeds with only 11 lbs of thrust. The S'Ray has a very low frontal profile and will easily exceed 200 mph! For anyone wanting some pics - email me through my website www.helijet.ca For $395.00 plus shipping the S'Ray is a real bargain. Just keep in mind to keep it light and for safety - use the powerplant it was designed for.