Ah, well racing is another scenario. My CO2 you press on the cartridge to inflate, on tam's version you have to twist a nozzle while you hold it. The press to inflate version is much easier and faster I've found.

I just checked mine and the brand is "Genuine Innovations" The cartridges cost a fortune though! (like $15 for 3!- but that's at duke's mind you)

Re: racks. Did you see this?

http://toronto.craigslist.org/bik/308886980.html