Last week I got a never ridden 2003 Mongooose Massif, which looks alot like a Giant NRS. It has a Sid rear shock with dual air and rebound.

When I first set up the shock it rode terrible. It was super spongy. I kept adding air to the positive chamber and taking air out of the negative. It kept getting worse. I started looking on the net for soem information on the shock and every RS rear shock I could find had the postive air chamber on the top. My shock's sticker show the postive as the bottom chamber leading me to belive its upside down. When I set the shock up reverse of how I had been doing it there was a big improvement.

Last night I went to see if it was holding air, I sit on it and it made some sucking noises. I let a little air of the lower chamber and it spit out some thick grease like fluid. I had filled this thing several times using the sticker as my guide I filled the bottom air chamber first thinking it was the positve chamber. I read that you are suposed to fill the positive first. Looks like I as filling the negative first?

Think I could get some help from RS since the shock label was upside down.

If I have to get a new shock would a I see a big benefit with a Fox with this stable platform technology I've been hearing about?