Before I send off my Streamline (that I haven’t had a week grrr) for what I think are regulator issues, what is the difficult rating of installing a Huma ? I’m ok mechanically and have done a little ag work . On the Huma site it ask what pressure I want , what is the Difference between high pressure and medium ? In ft lbs or FPS with a .25 using 25gr jsb? Idk if I want to chance FX with my rifle for what they say will be 2-3 weeks even though it’s under warranty