RST 2.5 inch 20 gauge shells

RST has 2.5-inch 20-gauge, 7/8 oz, available in a variety of sizes for $22 per box. Other option is to cut down 2.75-inch hulls to 2.5 inches, use a MEC 20-gauge single-stage press, and roll crimp instead of the last 2 (crimping) stations, or even get a short kit from MEC so you can fold crimp the short shells.
I have purchased loaded shells from RST and I have used roll crimping for the cut down shells. I bought the short kit but have not gotten around to installing it since the other options have worked well.