The STP works great, but is much better if you match it up with the Henderson Trim adjust See this link: https://www.irv2.com/forums/f258/does-the-henderson-trim-unit-work-will-it-hold-position-in-a-tire-blowout-409968.html. I have on our SIG and it works as advertised. I want to try the Watts Link, but unfortunately they don't have one for a 45' SIG.
Chet