I should add,
Huge seed takes much more talc to keep the seed flowing in a vacuum planter.
As in, dump the 1/2 unit in, add talc and stir, add the second 1/2 unit, add talc and stir.
No experience with this in a finger pickup planter.
I am going to say, do the same mixing method with the FPU planter.
Otherwise the seed will bridge over and quit planting on occasion.