Just got through reassembling my new Pico 75W. Yes, new (received it a month ago). It came in with the power adjust rocker protruding just enough to make it rock when I set it down on a table. My others have a half mm clearance, but this one is a little out of spec. Other than that it works fine, but I'm ticky about things being built with care.
It looks like I'm going to have to shim the bottom cap since there was no way to tighten/adjust/move anything inside. It's pretty easy to remove and replace the parts in the bottom cap but there's no way other than shimming to raise the bottom cap and recess the fire button so that it doesn't protrude and cause the mod to rock and fall over a little easier when it's sitting on a table. It sits fine on a table, but I can touch it and it rocks on the fire button.
I probably should have RMA'd it when it came in, but I ignored it thinking I could fix it. I can, but it's going to require a shim once I buy some plastic shim stock at Ace Hardware.