I just toss the seeds on the medium and then toss soil on top about a fingernail deep. Most palm seeds prefer being planted in bunches rather then single cells. Germination rates seem to be much higher this way.
And yet I have the patience to pot up single lobelia seedlings instead of "clump" transplanting. I think a lot of it is because I don't see so good anymore. That's one reason I got the magnifier headband!