Could you continue discussing this observation? I know for certain that some of these pools with lower average block sizes don't participate in SPV mining. I recognize that a lower average block size != SPV mining, but I would like to understand this better.
Cheers.
I'm sure myself and others would be happy to carry on discussing this (Not that I am that knowledgeable on this subject). There was attempts to highlight this here (probably other posts too)
https://bitcointalk.org/index.php?topic=1274066.0 if you want to take a read, but I stopped reading after the flaming started, so I'm not sure how the discussion progressed.