72/38 gearing definitely reduces some of the edge coming out of turns, I am less likely to oversteer due to (Mike Tyson's) punch out and the rear wheels slip-sliding sideways.
The minus side is that the motor runs hotter. With ~15degree end bell timing and 24 turbo.
The plus side is that I may have found a new place to mount a 30mm fan on the front end. It would require drilling.
Above is an image of the FF04, which uses a lot of the same front end bits of the Xv-01.
There is a small little shelf with little "U" like indentations facing outwards. You could drill small holes and tap them. Then place your fan on top of that shelf, securing the fan casing down with 2 screws.
I am not sure if sucking or blowing (air) would be more effective 😘
Here is a better picture of said area.