Thats deep and I like it.
Overdrive? There is a simple way to get more pull from the front by using a slightly taller tire. Same tires with different brand or style of foam will be taller enough to get some overdrive up front. I have done this some on 1/8 buggies, but not enough to talk about.
I find that once suspension and chassis setup is close I don't change it much. But Tires! I change tires throughout the day as track conditions change. Tires alone can have enough variables to discuss all day every day for weeks on end.
Ultimately, Tires are the most important setup change if everything else is in the ball park. Before getting into deep mechanical driveline changes consider different tires front to rear and different tire foam and compounds. Thats something I don't see discussed often. Maybe there is a reason. Keeping the best combo secret or just too hard to say it works well from track to track. Any thoughts on tire size to get more front drive?