Rockler Sure-Foot Style Feet for Harbor Freight Aluminum Bar Clamp

I have both the Rockler Sure-Foot Aluminum Bar Clamps as well as the less expensive Harbor Freight version. I like the stability of the Rockler clamps during glue ups and wanted to make the HF clamps sit at the same height so they could be used interchangeably.

Already looking to improve, soften the edges, as well as eliminates supports where I can. Let me know if you have any suggested improvements.