I've been using the Inovations Second Wind pump. The mini pump can't get to a very high pressure on my commuter with 28c tires so it is only good for limping home if I run out of cylinders. Although it can use both threaded and unthreaded CO2s. Also the mini pump is nice to find the leak if you need to patch the tube and to inflate the tube a little when reinstalling it. I actual got three flats in the last week so I have road tested it. I do like my frame pump but this little guy fits in my bag under my saddle and I don't have to worry about velcro straps or poping it off the frame with my knee at a stop light.