Greg, I have just received one in too. I am very impressed with the plane . There are a few things that need attention but overall it's pretty good. I will be modding the control attachments for rudder and elevator. I would like to know how you think it will fly with the 91. I'm between a Ys 120 or a Os 91 both are on the bench but I'm wondering if the extra power and weight of the 120 is necessary. Jim G