once again u guys are a wealth of knowladge. Thanks.
I use a preassure gauge that i have used on my car, it is a pretty solid gauge, but pumping it up to nearly four psi! At that sort of preassure would it not make the tire less likey to absorb the impact of sharp objects, and more likely to allow a puncture, due to its tenseness (if such a word exists)?
I ride to work on a canal towpath, which is a combination of gravel, rough loose pebbles,solid peebley ground, mud, grass and broken glass left by kids!