I have a 3.90 gear now and it's too much for me at MSRH and ECR unless I can run the car to 6500 which is also out of my power band. On the long straights it puts me in 5th gear at the very end which I don't like. Feel like the 3:73 would be just a little better so I didn't have to worry about an additional shift. Though the 3:90 certainly pulls me out of a corner great, felt like my car was a rocket on the straights at ECR when I go it right. It could certainly be driver error but it feels like the car unloads a bit in 5th and make me a bit more unstable when braking.... plus I'm not the best at 5th to 4th downshift for some reason (need more practice). I'll most likely build up a new axle assembly to test so it can easily be swapped... why not, right?