For lining I use it with a ttech stainless cart tube. With 3 or 5 liner ttech carts. I use 1" Red Rat grips to keep the vibration to a minimum. 3.4" stroke set to about 8.5 to 9 volts for 3rl and 9-9.5 for a 5rl. If I'm feeling especially skippy and confident with my lining, I'll bump the machine to 10v while using the 5rl. I've tried lining with the RPG2 and other disposable cart tubes but I don't like the vibration when lining. It's doable but stressful for me. So far I've set my give to 0, until I get a feel for the machine. Once I feel I've got the hang of using the zero give, I'll explore the give function. It's hard to get a feel for anything when your settings are all over the place.