The problem with on head testers we found is different people doing the same test got different results. I have a mate who has one, when seat pressures are low we can all get close readings, but I'm running high seat pressures for a roller & we can varie by 40 psi. I'm looking for a bench unit with positive stops so any of us knuckleheads get the same reading.
Yep.......like I said , it took me a while to get a technique I was comfortable with that gave me consistent results.
But using the same technique , whoever is pulling the handle , if you see a significant drop off in seat pressure , the spring comes out.
I am around 250 on the seat , and if one pulled 10 % less , it would get my attention.
