Bucket o' Shiitake
This one's about 6 weeks old. The downside to using an opaque bucket vs a plastic bag is you can't see what's happening, so I decided to dump this one out and have a look. The good news is, it came out really easily. It's clearly quite well colonized, but the only place it's showing the browning which is indicative of maturity is where the holes in the bucket are (see the two dark spots). I'm not sure if better gas exchange is necessary for the browning to occur, or if I just need to wait longer.