In the autumn I was getting too many punctures. At first I just blamed the potholes and glass on the road, but some warnings from my boss brought things into focus (apparently once a month to be 5-10 minutes late and work the time back is too often, I am not sure how a tram or bus would attain less frequent delays.)
I got some new Continental GP4000s (which are lovely) but the problems didn't go away. I got some 'lucky' on the way home punctures and did a bit more research. What I though were hard tyres were anything but. I was running around at 60/70 psi and sometimes as little as 45. My flatmate's old track pump from halfords/sportsdirect just couldn't muster enough pressure and often just blew itself off the valve.
I decided to spend some money instead of getting sacked and got a lovely steel base wooden handle Lezyne floor pump. It works *beautifully* I now have tyres inflated to 110psi and they ping over anything Manchester can throw at me. I have not had any pinches and only a couple of bits of glass (even these have stayed up until work there is so much air, I will gladly take my time to fix on the way home.)
So now [preamble over] I am used to rock hard tyres. I am concerned that if I am out on a long event like a 100mile sportive if I do get a puncture it will mean horrible flabby tyres the rest of the way. I carry inner tubes, levers and a small Airbone pump in my back packet. However the Airbone just won't give track pump style pressures. ( I did not catch a flat in an event last year but eventually will) it is a training stop gap only. I would like to know if anyone uses a CO2 pump regularly? I wouldn't mind pay for cartidges if I was using it for an occasional events and it got me back to a good pressure. But I have to admit I don't know anything about CO2 pumps and which one is best/most robust/economic/effective. Don't want to burn my hands or my pocket!