I'm interested in how it boosts, with the larger wing and engine rings you've increased the drag on the lower half of the model, hopefully it will still boost straight enough. Frank
That is a good point, it will probably nose over a little during boost, not sure how much. I was thinking about adding some kind of T-tail to the top of the rudder to offset this, but it would not add that much drag unless it was also set at an angle, and I don't think it would look good with two horizontal tails.
The Zooch Shuttle kit is fairly biased off the thrust axis centerline from a weight and drag standpoint, well the nose weight in the ET balsa nose cone is actually off-center to help balance the Shuttle weight, but it makes for a nice big arc during boost.
I was considering adjusting the centering rings of the rear-eject engine mount, but was not confident in how much to adjust the thrust axis offset, or possibly the angle. (then they would be off-centering rings,
) I could try to make a set of rear-eject engine pods with different thrust axis offsets to flight test them, I have a big stack of cardstock handy.
Easier than that, however, I have a little trim control of the boost flight path in that I can sand down the bottom edges of the elevator retainers on the engine mount, to allow a slight amount of up-elevator during the boost, if needed, to get it to boost straighter.