First, yup, the cups have drain holes. When I water them, I actually get some decent runoff through the holes -- let it drain well before putting the clear cups back into the other cups (only takes a minute or two).

Anyway, decided to transplant today. Partly because both plants had roots starting to come out the drain holes and partly because I wanted to do this on a weekend when I have plenty of time and I don't think it'll wait another week.

Both plants are now in 3-gal pots; same mix as the cups -- coco and perlite. I mixed a batch of food water (1/3 strength Big Bloom and Grow Big) pH balanced for 6.0 and soaked the coco/perlite mix before transplanting. It holds water real well, but as long as it has drainage, the mix never really gets soaked. In the cups, I was going about 3 days between waterings.

Transplanting is SCARY, man. First one went well, but the second one fell apart in my hand. I hope like heck I didn't damage anything getting it into the new pot! The stalks didn't seem real small, but the bigger plant had finally gotten wider than the cup.

Some pre-transplant pics:
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