RE: Sig 1/4 scale Cub build?
In the last 10 years I have built ,flown and sold three of these and the fouth is framed and ready for covering. If you follow the plans these build strong and durable . The light wing loading means you dont have to try to reduce the weight. The only failures on these planes that I have seen is the failure to follow instructions . If you try to save weight in the wrong areas you will weaken the design . I have hovered , rolled , snapped and spun and never had a weight concern or a failure . This is probably the only plane I have built so many of and found no need to change the plans (other than servo locations and firewall position due to engine choices ). I guess what I am saying is if you change the design use caution , but dont be affraid of the design as it is.