Drop and ASA question

[bluefan101]

Opinions...I'm looking for a small drop and ASA that would work with CO2 and also work with nitro when I'm ready to convert. Preferably one with an on/off. I've looked around an all the ones I see are too much of a drop. I'm running an expansion chamber and intelliframe if that tells anything about how short of a drop I'm talking...maybe 2" drop? Not sure...
Not really a tech question, but I figured if I got it wrong the mods would move it for me.

[BajaBoy]

look into cp and shockteck. They seam to have every size you can think of, without being really big