I think it's down to your preferences. This airplane is such a gentle flier it has absolutely no need for flaps at any time. For folks that are newer to the hobby, or people that just want to keep it simple, straight up ailerons are great. But if you like flaps, or want to play around with how they change the pitch trim and flight behavior, or you just like how the airplane looks on short final with flaps, then for sure, go for it. I built my storch without flaps and never felt like I was missing anything. At the time I was building the wing, I just decided I was in the mood for a simpler configuration, and figured I could always convert to flaperons later if I wanted.