Never got the chance to answer the first thread, but will add here. Make sure you don't have something slipping in one of the pushrods or control horns. You mentioned that the up and down throws were not even at max throw, and if they were when you built it, then something has changed. It may justhave been you, like you think. I have had days like that also, like it was someone esles model or something. But be sure you don'thave something slipping or loose in your controls, or your handle cable.
Type at you later,
Dan