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Altaros Help. Reg wont go above 100 bar

Hi all. I installed a alteros reg on my S400 classic. Its a 100-150 bar reg and was set at 125 on the scale out the box.

I went down a bit to 115-120 before installing and installed exactly as per video and pressurized and it only went to 95 bar. With 150 in tank.

I also installed the quickfill with tank pressure guage.

I stripped and went slightly higher on scale and still 100 bar.

No matter how much i adjust reg pressure only goes to 100 bar... i have not turned screw out more than 1 full turn because alteros does not recommend that...

Is it that it may be needing extra Bellville washers internally or is reg actually screwed?

I test fired and its 10.5 ft/lb but is extremely consistent...

Help