Me and my dad are currently working on a couple of experimental projects at this time, one of them being a wag aero sport trainer. We plan to build it light, no electrics, but include standard flaps. I know we may take some criticism for the flaps, but different strokes for different folks. One option we are debating on now is engine choice. Seems to me that some folks have said that a C-85 with a 0-200 crank is the hot ticket. Is this the case and what is it that makes this engine so good?? We have considered the standard 0-200, but some most will say it doesn't have the torque which leads you to using a very flat prop. Is the modified C-85 better than your common stock C-90?? Those of you that are experts on these small continentals please chime in. We want to stay with a small continental for low fuel burn and light weight. We currently fly a wag aero 2+2 with an 0-360 and want to downsize.