I think the idea behind the multi-seeds in one pot is to kill off all but the most vigorous one in each pot just a few days after germination (before the roots have time to compete with one another). Seems like an OK idea as long as you have plenty of seeds.
i do exactly both of those.If you are gonna toss more then one into a single pot, pt the seeds close to the edge. So you can remove them easier.
Just get a few plastic cups and do one seed per cup. its not rocket science.