I really didn't want to get dragged into this but have to ask the question.... If you are unhappy with the performance, have to drive hours for training and every day use and have many vehicles to choose from then why are you driving the Jeep everywhere? You say you only like it so you can change things (I guess you can't do that on any other vehicle made so it must be a valid point...) so there is no need to torture yourself driving it - just park it up, modify it to your hearts content and drive that unknown Chevy something or one of your other vehicles that get such great mileage. Problem solved
Sorry to the OP

back on topic, it's great seeing more players enter the supercharger/turbocharger market for these engines. Sure a Hemi or LS would be great, but keeping that front end light is a nice option too, and replacement engines are easier on the wallet with the 3.6 or 3.8 than the big V-8s if/when one goes bad.