Once you guys have some germinated seeds, do any of you plant say 2 or 3 in the same pot (once big enough) or do you give them all their own pots?
plants should only co-exist in a pot long enough to find the winner, the final resting place should be solitary.
when your potting up if you make previous winners fight in the same pot they probably end up both growing slower than they would in their own pots without root space competition.