As above, after a few unscrewing sessions and lots of swearing you have 3 choices
– loctite valve cores
– carry a valve core tool
– buy something that doesn’t screw on
Last time this was raised I was told ‘you are doing it wrong’, I suspect designing a thread that relies on greater friction than the other thread to function is actually doing it wrong…
I have bought another Mountain Morph (great) and dumped my Lezyne Alloy Drive.
The birzman adaptor is great, I have a brilliant tiny roadie pump with their click on system so would look at an apogee pump too.
And CO2 (push on) for when it’s cold, dark, raining, midgy or combination of the above! With a spare micro pump of course.