I am using saucers under my smart pots and it's a pain in the ass because you can overfill them really easily. Coco holds water very well up until a point and then it just passes it right through. I will be putting a flood and drain table in there soon, not to use as flood and drain but just to use as one big saucer with a higher lip.
Just water one side at a time..wants the bag beads a bit rotate and repeat after the first watering u get an idea how to use em.. I have no saucers and mine work fine