I have used both for a while (as in not just over a chrono). And can safely say I don’t thing that there is a thing the freak has an advantage over the unitec, the unitec is cheaper, quieter I found, better at shooting through barrel brakes, lighter (if ya into that kinda thing) more accurate, weather this is due to internal finish or solid bore size of the unitec I don’t know and available in lots of pretty colours as well
I have also used it rather than an all american, shaft, UL all of which I have prevously owed as well
hope that helps, any other questions feel free to pm me
-Mat