I ran both the stiff w, and the standard 10.5. No debate for me on which one is the best. The w tire is better by far (as far as down track handling and traction) I felt that the standard sidewall did launch pretty comparable to the w. Never worked to much on chassis for the standard tire. Didn’t really care for the sway down track.
I would suggest keeping the w... especially considering the fact that you are planning on using it in a situation that is likely to cause some “track induced” yaw!