I will back that last sentence 10 out of 10. One day you see like 2-3 pins. The next day you see like 10-15, and then like 2-3 days later their huge, then the veil starts to pull away the next day. Oh and they look soooo cool as they grow, I wish i had a good camera cause i would do a timelapse video. For fruiting chamber i've had problems with doing holes, I never could keep the humidity up. I think I had too many in a smaller chamber but I've had the best luck with a sealed container and opening and fanning like 2-3 times a day. Only fan for about 10 secs.
Also guys, how do you like the Z-strain. I just started growing mushies back in Febuary but I have done 10 jars of Texas, 10 jars of Treasure Coast, 5 jars of Golden Teacher (from LC, friend had cloned one), and right now have 5 of PESA at 60% colonization. Texas and Treasure Coast took about 20 days to fully colonize jar. I loved the Golden Teacher, hard to say how fast they would have colonized from spore cause from LC it took 14 days exactly.