Yeah you are essentially making your top limb longer and bottom limb shorter when offsetting the handle like that. A shorter limb is stiffer(all else being equal) so what you are seeing makes sense. The shorter bottom is stiffer at brace, hence the positive tiller, and it has to bend more since it is shorter, so it will look like it's bending more at draw.
So it's 1/4" positive right now? I think it may be a touch too much positive tiller.
That's the only thing I see man. Tiller looks pretty good otherwise.