When they stated it weighs only 3 1/2 lbs they must have forgot to add the engine and radio gear. It's more like 5 - 5 1/2 lbs. when finished. I'm using a 55ax with a pitts muffler. I replaced the flimsy motor mount and fuel tank. I used the stock linkage and seems to work ok. I have about 50 flights on mine within the last 2 weeks and I'm still trying to figure out if I like it or not. They say if you don't beef up the landing gear area it breaks easily. I left mine alone (with the hot glue) they used at the factory and seems to work ok. If you don't grease it in, it has a tendency to bounce on landing. Tracks very nice and rolls like it's on an axle.

It's a nice looking plane and well worth the money. Get to slow and it has a tendency to tip stall on you.

My personal overall opinion, It's like flying a "little brick"!

Here's what others had to say about it..... http://www.rcuniverse.com/product_gu...fm?kit_id=2695

Good luck on your decision.