Well, I switched my coil spring to air and I can safely say I can't really feel a difference. The small bump sensitivity everyone is ranting about losing with air did not change (maybe from the floodgate mod). I lost about 1/2lb for a $80 rebuild with no performance loss - can't beat that.
I do notice if it's 2-3 PSI off, it makes a huge difference in small bump compliance, though. I'm 163lbs w/o gear and I have it set for 60PSI, 4 clicks on HSC and LSC from full open. Several spots where I used to bottom out on with a blue coil and 4-5 preload spacers is now a very nice bottomless feel and ramp up. If I go more than 60PSI it starts gettting bumpy. I still bottom out, but, not as much. Still bottoms out on the 5 ft drop (to almost flat). Here's what I did with my 2007 Totem coil:
-Swapped to air spring assembly
-Replaced all seals, rings, dust seals and oils seals.
-Suspension - Motorex 2.5 (I know it's not exact spec as OEM - exactly the point)
End Result - I had to turn my HSC and LSC up one more click (both 4 clicks from full open) to feel close to the same. Ramps up better, and bottoms out less...but...still does. Small bump compliance is the same. If I bump up either the HSC or LSC settings it gets more bumpy and makes no difference on the bottom out. If I could somehow do like a 2 stage HSC stack mod, that might be the ticket to make this thing work perfect. I just may give it a go for fun.