Filou @Filou - 6d
Mostly, I just have to be careful to select the correct size roller since the coated seed can break up sometimes, or jam as they go through.
Although with uncoated seed we had the opposite issue, that they’d seed too thick and we had to spend a LOT of time thinning. So I still find I prefer coated in spite of the above issues and in spite of slightly higher cost.