Indeed, the Joe Blow Sport model is a great pump.
Resurrecting an old topic .........
taking up cycling last December I purchased a
Halfords floor pump, and since then an Aldi floor pump - same issues with both, difficulty in fitting and releasing the pump to the Presta valve, above 80 - 90 psi the gauges did not register any pressure increase, the difficulty in fitting/releasing the pump to the valve resulted in inner tube wear at the valve/inner tube interface and resulting "puncture" and need for new inner tube.
Following the the recommendations of this topic I took advantage of the current Halford 3 for 2 offer on bike accessories and bought a Joe Blow II Sport, certainly a more substantial pump which on first use appears to, unlike my other purchases, do exactly as the packaging claims.
Thanks to all previous contributors to this topic.... +1 for the Joe Blow II Sport