Warning: Long monologue on complaints with current pump. Basically I need a new one that actually works.
Every time I try to pump up a Presta valve with my floor pump, it is a bit iffy. Sometimes the valve is tilted or a little bent, or sticky or whatever. Regardless, if the tube has about 80psi or more, the valve sticktion is too much for the pump to handle (it can take 160 psi max) so I will start pumping and the pressure in the gauge/pump hose is above 160, but still not enough to depress the Presta valve, so the pump gauge blows out through a safety valve. The pump is unable to pump after that until I reset the gauge. This is an annoying process where I have to remove the gauge, pop the safety valve back in and reset the indicator needle to the right point (taking into account the slop in the needle), using a digital pressure meter to set it to the right place. Without the digital gauge to use for calibration, there is no way for me to fix the pump gauge reliably.
Usually what I do to avoid this is to depress the Presta valve with my finger and let some air out, so that it is not so sticky and the pump can overcome the pressure. But sometimes it blows anyway. And when it blew again yesterday, I chipped a little piece of the plastic gauge cover, which acts as a seal. So now my pump is dead and I need a new one.
I am looking at some middle grade pumps, something like a Serfas FP50 or FP200, or a Joe Blow Sport. Are these pumps fairly consistent on the gauge pressure reading? Does the valve head work reliably without damaging the delicate Presta valve?