The thing about PF tek is that it's not the same exact process for everyone in the fruiting stage. Your humidity might be high because it is warm and you have a lot of moisture in there, but it could drop because of the high temperatures evaporating your moisture too quickly. Too much heat/humidity and your fruits go hollow and weak. If it's colder it takes a lot more work to keep humidity up in the first place, but fanning a chamber when it's colder seems to make humidity take forever to build back up. Whatever your temperature, you just have to find a balance.

If you have good fruit growth, just keep doing what you're doing. You can mist the cake heavily to hydrate any dry spots which might have bruised, but you will probably waterlog your shrooms if they get too soaked. The pf tek makes this hard to avoid unless you have perfect temp and humidity at all times without fluctuation. Not the best for making picture perfect shrooms.

That said, your grow looks like it's turning out pretty well :thumb_up: