I can tell you this much. THe DZY-100 twin is an absolute jewel.

I bought one to see if it was any good. Bolted it on a plane and went flying with it, I haven't had to do a thing to it. It starts in a few flips, idles very smoothly and reliably, spins up a 27-10 with plenty of power to haul around a 28 lb. Extra with unlimited vertical.

I have about 30 flights and well over 5 hours running time on it and it has never missed a beat, its performance is the equal of a DA-100 at half the price.

Now, not all DZY's are like this, the smaller ones seem to be less complete, but this 100 is a real peach.

TF