RE: needing help with Starmax F5e mods
The full scale F5 doesn't have that much dihedral. It's mostly for looks I think.
I didn't like the wing flex I saw in turns during the demo videos which was the only reason I added my spar.
It's hard to tell by your pics but it seems fine. AS long as there isn't any anhedral you won't notice the diff in flying beyond the stock config.