That was a good idea to try alternate chords to manipulate the solo
Key is using the right chords

This type of innovative thinking is your best bet at finding success. The tracks are done in certain styles, and apparently the style you are after isn't available ... yet.
They do add them, so I suggest adding it in the wishlist forum

Try generating mutiple versions and cut/paste the decent sections into one?
Use a different soloist and run it thru guitar FX plugins for the distortion (if another fits better)?


Make your sound your own!
.. I do not work here, but the benefits are still awesome