The biggest thing I'd focus on in both transmissions is having a good valve body and setting up the transmission for no overlap. This transmission inherently gets stuck in two gears at once on the 2-3 shift, and a lot of shift kits will amplify that. A very harsh shift is not a good shift, it is a bind or overlap. You want a quick, firm shift with no overlap on the 2-3 shift. We do a lot to overcome this.
