What setting do you use your Veriflow on? I use a Surflow 60psi pump but find that I only need to have the Variflow dial in the 9 o'clock position, that's only about a quarter of the available power. This being the case why would anyone need a 100psi pump? Should I be running it faster? This is important as I may be taking too long to rinse on beading glass. It's not really practical to keep going to the trolley to turn it up for rinsing. would be greatfull for your thoughts guys. Dai