The wigglers keep increasing their numbers, and better yet they're breaking down the contents quickly. The tumbler went from near full to half full in no time- it's safe to say that red wigglers are an excellent addition to outdoor composting efforts. Red wigglers are very resilient to extremes, but if it gets too hot or too cold, they can burrow into the contents or exit the tumbler for a bit.
This is a good problem to have- red wigglers are finding their way from my compost pile into my Envirocycle! It's interesting how I still can't get the dampness fixed, even after quadrupling my leaf additions each week. I think it's time to make the holes on the sides bigger to let more air in. If you have an old Envirocycle composter model that's pre-vents, definitely think about making some of your own.
After a good hard rain, I opened up the compost tumbler to a blast of steam and a bunch of mold. This is the main challenge with compost tumblers- it's very easy for them to become oversaturated and moldy. However, the fix is easy. Simply add several large handfuls of leaves and tumble it. After that, add another layer of leaves on the surface and you're done!