I just purchased Palmer plans for an 87" C-130H. It calls for 4x.25 engines, which I will mostly likely make OS .25 LA's. I am trying with zero success to find 4-blade propellers to use with the .25's. I understand that the 4-blades are inefficient, but I would only be concerned if that really affected it's ability to fly. Has anyone built a 4 engine plane with these motors and 4-blade props? I'd really hate to use 2-blades...