Just so we are clear, EM makes a H13 7 shell, and a MB shell which is 5,6,7. If you got good patterns with the HW 7s, I would stick with them. They can be finicky about chokes, but if you find a good one, that is the best 20 ga shell on the market. They have more penetration than even the HS 5s in the MBs. Some guns and chokes do better with the H13 7s, but the HWs carry a lot more punch.