I have a full freektune and an ots stratified tune. I love the freektune. It's smooth and powerful. I bought the stratified tune because I wanted the crackles. The stratified tune is powerful too, but not quite as powerful as the freektune. Also keep in mind that I'm comparing a full etune to an OTS map, so I have faith that the strat tune could have as much power. The other main difference is the throttle. The freektune throttle is like stock; theres more power leftover in the last 20% of the pedal range. With the stratified throttle, you get a lot of power with less throttle input.