I considered doing the zip lock bag thing, but decided that it's less stress for the seeds to be planted directly in soil. I don't mind getting rid of the extras, even if no more seedlings emerge, we will have 12 pots of chilis with these. I'm guessing half of them will give up still (at least), but that's a lot better than last year. I started the same amount last year, and ended up with one pepper plant, and it tasted bad. It was some small paprika variety, no heat to it at all and no sweetness either. It looked pretty though.
Sam, have you had any issues with the Ti Dragonchili? Out of 12 seeds, only 2 seedlings so far, and it's been about two weeks since we planted them. The two other varieties have about a 75% germination rate.
The yeast and blowing into the bag are interesting ideas. I wonder if a bottle with some flour, yeast and water mixed and an airlock would be a good CO2 boost in the mini greenhouse.