I used to have promix, but now they stopped producing it or rather upgraded it to different indoor and outdoor variety with some microrhiza bacteria and such. ANyway, am trying thsi new stuff now. I always keep vermiculite separately in case I need to add some but so far things have been growing fine.

I'm using Miracle Grow Potting Mix. It does have a really nice texture, with none of wood chunks like whatever it was I used last time.

my problem was taking the seedlings out of the milk containers. The soil mix fell apart pretty easily so the roots were exposed. It didn't seem to matter that much but I would like it to not happen again.

I've used mostly ProMix and last year Fafard. I got a bag of Fafard for this year, too. It has a lot of vermiculite and perlite which I like. Seems to help both in moisture retention and drainage. If I remember when sowing I add more perlite. Those containers can get awfully wet when spring monsoon rains come and I think sharp drainage is probably the most important thing in a soil then. I use lots of big drainage holes, too.

Karen