return pump sizing

[Charlie Davidson]

I believe one of the most common mistakes many people make is installing the wrong sized return pump.. too often people install a pump trying to get 6, 8, 10X the total system volume.. ( I think, they are confusing turnover rates-- with flow thru slump)
I say 2-3x is the most that should be used,, I know there are Articles written on this here on Reefkeeping magazine..
Can some one point me to them? Please