Question from an S/H newbie (or should say, wannabe). I am going to take the plunge and try S/H, probably PrimeAgra, on a half-dozen of my Phals that haven't been doing so well in a straight sphagnum-and-bark mix in my specific growing conditions. They've been growing in slotted plastic pots that I got from RepotMe. My question is this: how important is that reservoir at the bottom, e.g. in the plastic pots at First Rays? The slotted pots are slotted all the way down the sides, and across the bottom of the pot, so no reservoir would be possible. Is it still practical to use them (and thus probably have to water much more frequently), or should I rather get the pots that provide the reservoir?