We played this weekend and it was at about 30 degrees when we started, as usual the spyders didn't work well, but I had lots of spare Tippmanns that I let those players use.
My remote coil didn't work (it was leaking) so I had to go tank on gun, and I never put silicone o-rings in my latest A-5... So I need to do that as it had a slight leak...
But, once you put silicone o-rings in, and run very light oil you can play even with Co2. A remote coil is best (put silicone o-rings in it as well) and that will act as an expansion chamber for your gas, so it won't get liquid inside the marker.
Trails of Doom Stickers on Ebay!