I received ownership of a Oldfield Baby Great Lakes Bi-Plane. I flew this plane for many hours years ago when it belonged the the owner prior to the estate I got it from. My concern is that I think the horizontal incidence has been changed a lot but never flown. Does anyone possible know what the proper incidence in relation to the level water line of the Fuse. should be. I do not have any drawings. I know this is a guess at based on pilot weight and so on. I'm concerned because from an old photo I have, It has been moved a lot. Thank for any input.