SQM configuration wiki page missing information

I think with docsis cable like OP has setting SQM / cake / upload-download values / overhead 22 is enough.

I get 500Mbits on my WRT32X and my Rpi4 doen't break a sweat with those settings, both A+/A+ bufferbloat/quality on dslreports too. Best thing to do will be to capture this awesome post you did into the SQM Details wiki at some point for advanced optimization.