[osikasculptor]

Have radio mix switch off (down) so channel 8 (4th valve) dial manually controls pressure gradually along with sound module. (channel 8 on radio e point set to 120%/120%)

This way you can set the relief valve for your max pressure and run it with the mix on or this way with a flip of the toggle. I like to dial it up or down to as needed like if you want really slow movement you can easily adjust it then back up to max. Plus the movements this way are more fluid and replicate
a real machine more the way it feels.