I am not confident the watering regime I have employed is correct for my mounted orchids and would greatly appreciate your advice.

I have a number of angraecum and aerangis species, all mounted on plain cork. My growing conditions are:
-They are placed on a west facing window- receiving indirect light.
-Temperatures are max 16C in daytime and min 10C during night time.
-Humidity is 50-70%

As we have winter in Scotland, I am worried about over watering. As I do not grow them in a greenhouse, I also worry about letting them dry.
Most seem dormant at the moment, but a few have growing roots.

I have read a number of watering techniques in the forum: from daily misting to letting dry and dunking them once a week.

What should I do?