I realize you're asking Dick but seeing how he hasn't replied yet I'll kick in my $0.02 until he can reply... dunk. Mushrooms are 90%+ water and need a lot of it. I don't like letting the sub dry out because once the myc is digesting stuff, it's a race to beat the contams. I want my myc nice and healthy so it outcompetes any funky business. Keep up the good work dick... I've agreed 100% with all your advice so far.