Hmm never heard of the calyxes thing, but have heard its to increase resin/trichome production.I tried it with one plant and didn't see much difference. I'd be interested in hearing other's experiences. I plan to try with another couple of smaller plants. It's supposed to help the calyxes swell and with general ripeness, I suppose. However, if you wait until the plant is ripe when you pick it, I don't see that it would be all that helpful. Might be a good step if crappy weather is on the horizon and you have to pull a little early because of that.