I prefer a much shallower depth in order to get growth out of the media as quickly as possible. Good media to seed contact is important. So I use a wooden trowel to press everything down before a water bath soak. My tools, other than a trowel, are a ruler to level soil and make slight indentations for rows and a vibrating seeder to get good seed spacing within rows.

the seed coats usually come off with time on their own.

1/8" to 1/4". Never deeper than 1/4"

Same as Bruce - 1/8" to 1/4"

I planted 20 starter containers with 4 seeds per container this year. I had only one container not sprout yet and that was one of three where I used some extra potting mix that I had laying around. I used it because I ran out of my regular starter mix. The other two U/I containers with that stuff sprouted later and with lower ratio of sprouts per container.

Anyway, I don't see you going wrong with planting your seeds between 1/8 and 1/4 inch deep. One further point of clarification is that I would plant the smaller pepper seeds closer to 1/8" than 1/4". Just plant several per container and when they get a couple inches tall with one or two sets of true leaves, then cull out the less vigorous seedlings in each container.

That sounds fair enough you guys. We each do what works.

Over here, even the very tiny seeds for my Biquinho Amarella were planted some ½-¾" deep and all came out fine. I think that 4 out of 8 of my mini-sweet peppers seeds might not sprout at all at this point, it's getting a bit late versus the other 4 that are out and deployed. I'll start some more with a wet paper towel and ziploc bag.

I either finger poke holes and drop seed in and bury, not sure exact depth. Another way is I fill up the container to just about full put some seeds down and throw soil on top. I use those tiny yogurt cups for seedling pots in a tin foil brownie pan with a plastic lid they go and that's my mini green house, leave them there until they sprout and off they go under lights. I get a few helmet heads every now and then.

Sweet setup Barrie!

Absolutely, love the hanging tables.

Starting in mix, I plant on the shallow side, 1/8" to 1/4". This year I germinated most of my seeds using the paper towel method. Worked great. Have several flats of healthy pepper seedlings. Fushimis (from our harvested seeds) are growing fastest of all for some reason.

Nice looking setup Barrie!