With my 10Ga I found it easier to dump the shot and put the felt wads on top like an over the shot card. But that is for a 1 1/4 oz load and I need two 20 ga felt wads that get stuck in the end of the shot tube when I seat the plastic wad and every so often when I pull the lever up the felt falls back into the hull and shot goes splashing all over the reloader, the bench, and the floor.
Can not tell a diff when shooting.
Make up a couple and try them out.