Sorry, don’t have premium so can’t comment on here http://singletrackworld.com/reviews/review-lezyne-digital-pressure-over-drive-floor-pump/

Does anyone know if when just topping up tyres with this if you need to bring the main chamber up to pressure as well? Looking to get just 1 pump for MTB, but if every time I want to check pressure/add a couple of PSI to tyres I need to pump it all up by 30 I’m not so keen.

Cheers.