I don't think you can get a "legal" 11lb Double Vision kit or ARF. I have 2 Eclipses and can tell you that it is a very competitive plane. It is a very good deal. There are some things you can do to get it lighter if you want (carbon wing tube and carbon gear) but you can build it stock and come out under 11lbs without a problem. I flew mine all last season and at the NATS, and had a very good season with it. There is/ was a very long Eclipse build thread by swk551 here on RCU that has a huge amount ot good info to help when you get the kit.