I have a Sceadu 50 with an OS 46. Flies great. No, make that awesome!. If you have already progressed to basic aerobatics then you won't be disappointed in the Sceadu 50. It is fully capapble of 3D flight. Make sure you get the 3rd bearing upgrade that supports the bottom of the main shaft. It makes the whole rotor shaft more rigid. And while you're at it also add the DTDS for the tail rotor. The main gear that comes with the DTDS is machined derlin and much better than the stock gear that comes with the kit.

If you buy from a US source then those 2 items will be included. Outside the US I'm not so sure. If you plan on using the OS50 I recommend going with 600mm blades. The stock 570's that come with the kit are OK but too small for the power the 50 size motor puts out. If you want to hear more got to http://www.hirobotechnique.com, http://volkul.tripod.com/ or http://www.geocities.com/jbrundt/sceadu.html There's also a Sceadu forum on Yahoo! Groups.

Overall i think it's much better than the Raptor for it's size and class.

Jeff