That's a good solution. I did 6 of those, and they're nice. But I have a large supply of those deep-root 6-cell packs so use those w/4 inch pots I'd accumulated. Can't remember if I can fit all 6 in or fill two ends with 4 each end of the little pots.

Too early to tell what my overall germination rate will be from those.

Good results from the plastic cups with snap on lids which I purchased and vented.

Seems like some seeds aren't too picky what you've got them in although think I lost one batch just covered with baggies to a freeze. It only matters once they've sprouted or just beginning to sprout with that (I think).

Thanks for the fantastic idea. I just turned my seed starter into a winter sow container by putting holes in the top. Then I bought 72 pellets at a cost that was much too high to bother doing it again. So much for saving $$! The bottom of the starter kit is flimsy and breaking down anyway, but I hated to just discard it and not use it next year. Your idea is exactly what I need!