Built the Sig BlueHawk (Sig kit #101) 34" profile model of the Ultimate Bipe. Absolutely luv it!!
Have destroyed three, which is a feat in and of itself, as these built light and strong as Ft Knox! Number four has withstood everything that I've thrown at it so far and remains my #1 go to plane if I just want to throw something in the air for a quickie.
Fast build, inexpensive kit..goes from kittycat to wildcat as fast as you want to be crazy or calm. Never have to worry about smacking it in so I can be as ridiculous as saftey allows and really stretch the envelope.
If I didn't already have the next boxed kit in reserve and felt Sig might need some help I wouldn't hesitate to get another...you know...for the next time my judgement exceeds my skill level/reaction time