I just went to Essentially Offroad near nashville to get my coilovers charged with nitrogen. (Eoronline.com)
Wow, I would go back in a heartbeat, the guys there were great.
The leepers have a fill valve they weren't familiar with (not a regular schrader) and they were up front about admitting they hadn't seen it before and looked up information on how to charge it.
Turns out, my leepers take a needle schrader valve, which they didn't have on hand. Typically its only used for snowmobiles.
They offered to order a new end for their tank from fox that would let them fill it and also called down the road to a bike / atv shop. That shop could fill it but wasn't set up to pull off the coilovers to get to it. EOR offered to pull my coilovers, drive down there, get them filled, and bolt them back to my truck.
I ended up ordering the 20 or 30 dollar part myself through them so ill always have it, and when I go get it on a Saturday they'll charge the shocks, even though the shop is usually closed Sat.'s, so I don't have to take off work again.
Wow, great service imo, would go back. And they know their stuff, the crawlers they were building look insane.
They also wouldn't take a dime for spending a good half hour helping me figure this out.