Assuming you have it floor tillered, and maybe even knee tillered, would it hurt to try and tiller it by bracing it at 1"- check the tiller and adjust, 2"- adjust the tiller and adjust, 3"... and so on until you reach brace height? Seems the only down side to this would, of course, be the extra stress it undergoes in bracing, and the longer periods it would be strung (as opposed to the few moments on a tree). Seems that it would only be as bad as using a tillering stick (which some people don't support)?
But would it be a completely bad idea?