...and that is why I just decided on going with RIPP!
It was not just your post, or the guy who decided to do an LS3 because he could not get his to work. It was all of the pages I just read about the lack of support that guys with 3.8 liter JKs griped about, along with only 2 owners saying they were happy.
I wish I could put some faith in the Sprintex, but there is not much data out there from owners on the net, and that is possibly due to 3.8 JK guys being disenfranchised by the issues and lack of support the faced years ago. The modern 3.6 JK Sprintex might be awesome for my manual JKUR, but I will never know because other than one YouTube video of a 5.3 LS JKU getting beat in a drag race by an otherwise comparably equipped Sprintex SC 3.6 JKU, no one is saying how great they are except Sprintex.
RIPP may have the advantage of better market penetration and very good marketing, but they are doing something else right to get the brand loyalty from their customers. This is a matter of perspective since all of my research is internet based, however, that internet presence is critical not only to selling a product, but refining and servicing it as well.
Here is my totally unscientific perspective/reasoning for all forced induction options I could find and how I came to a conclusion:
Edelbrock E-Force: heat-soak issues by design, similar to Magnuson, possibly improved, but too new and almost no owner data out there (unknown quantity other than Eaton rotors and solid Edelbrock reputation)
Magnuson: heat-soak, solid base of owners who seem pleased overall, could have been engineered better: to allow oil change, electric pump down low near axle could be an issue regarding water/mud (known quantity)
ProCharger: similar to RIPP, but with almost zero data available even from the company (unknown quantity)
Sprintex: looks great on paper, but still seems extremely susceptible to heat-soak, and if there are happy owners of this product for 3.6, I can't find them; probably because of Sprintex issues with 3.8 SC (understand RIPP went through issues as well, however, it is how these issues were dealt with that matters)
Prodigy Turbo: maybe the best price for the power, likely most efficient system because it is turbo, susceptible to water intrusion, heat is an issue for any turbo system (can require multiple add-ons, turbo timer, etc), fastest 0-60, but not the best for me to install or purchase (higher upfront cost)
RIPP: not ideal power delivery for me, but great peak power, susceptible to water, least susceptible to heat-soak, efficient power delivery, 2nd best 0-60 time, everyone loves them, bugs appear to be worked out (known quantity Vortech V3)