Thanks, so the Pico takes flat tops not button top. I have button tops for my Provari's but the P3 takes flat tops too I will see if I can get some that will work in both.
I got a Pico before the Provari's, so I had the flat tops already and had to get button tops for the Provaris. I never tried a button in a Pico, so I wasn't sure about them playing nicely together. You can tell pretty easily which end is up on the flat tops, they look like someone mashed the button on the positive end, and the back end is smooth and flat.