I have a red US40 from Hanger 9 with the quad flaps and a Saito 72. I have another yellow one with no flaps and a Saito 56.
They are both great and you are not going to pull a wing off a Ultra Stick.
The Big sticks from Great Planes were the ones that the wings would fold on. It was the first batch of the Monocoat covered ones. Since then they have been OK.
