I really liked the original, but felt the clips were a bit thin: I snapped two prints just taking the supports off and I have good easy-to-remove-support settings. I also wanted to use a bolt and T-nut to secure this support to the frame with assurance it wouldn't come off.

This remix includes a through-hole with counterbore for an m4 machine screw allowing for a T-nut in the frame as well as clip legs that a 1.5mm thicker.

I've include my Cura .3mf solution file for the Ender3pro in PLA - That seems a fairly common combination to help people with printer settings, support settings and so on. ('2h' indicates its a 2 hour print with these settings)