The cakes are solid white and rubbery, as you mentioned. The local water is great for just about everything and has a good but not high mineral content and very little chlorine. I might inject about 10 cc's or so of water into one or two cakes and see if it makes any difference. I'm torn between trying to recreate the environment in Florid, where mushrooms are very plentiful during the wet season, and locally, where we see mushrooms after some prolonged rain in the fall, with lowered temps. This is my first attempt in nearly 50 years to do this and I have had some success, just not what I was hoping for. It's possible that the strain I'm using doesn't get big flushes, but it DOES get big shrooms... Penis Envy is the strain.
On a side note. Since the jars are empty, I'm considering starting another round of myceliam. Since I have healthy mycelium from my current cakes, how hard is it to transfer a starter into the new jars without getting contamination? Spore syringes make it easy, but since I have a bunch of the starter, I was curious if it could be easily used.