Ultraflate and other brands of CO2 cartridge
Been carrying an Ultraflate for a year or more. I had the chance to use it a few weeks ago, and it worked great. Then yesterday, I found out the hard way that unthreaded Planet Bike 16g CO2 cartridges don't work with it. Duh moment for me, I guess, presuming that all CO2 cartridges are created equal when such is not the case.
I've been reading on BikeForums, and I now know that I can use any brand of threaded cartridges, which are more expensive.
Are Genuine Innovations 16g cartridges the only brand of unthreaded 16g cartridge that can be used with Ultraflate?