I like the 65% Boveda packs...
I too have an old French analog that has been regularly tested for 10 years now.......and always reads 3 or 4 over on salt tests.
Better and more consistent results than almost all of my digitals, many of which didn’t even last 10 years.
But I pretty much don’t even need hygros any more. Bovedas and beads.................done.
KingoftheCove wrote: