Back on topic . I have always preferred small tube to large ones. . That said when I say small tube I mean 3/8 = GPU cpu' Smaller yet NB/sb and regulators 5/16 / 1/4 . harddrives 1/4 memory 1/4 .

The thing I believe many people are missing here is cathar simply stated that because of higher head(pressure) more flow is now available to smaller tubes. In other words flow threw 3/8 today is compareable to flow a few years back to 1/2 tubes.
I debated with the large tube crowd over small tubes being just as good as large back than and got spanked. Now the small tube guys are coming out of the wood work saying they were right all along which is false .

I got into with the small tube guys also .Back than . OH he contredicts himself. Not.
I have always been a multi loop type guy . Flow is the Key word here. Today we have the pumps to push flow threw those small tubes.
Now I have read that to much flow stuff and I won;t touch on that right now but that can get very interseting. When I go on that one I will have the numbers to back it up.
But in a normal today set up there is no such thing as to much flow.

Pumps in parallel Vs. series we shall get into that a bit later in the thread. But again it going to prove very intersting because the math just doesn't lie.

Bottom line is this Cathar new info is based on todays pumps in very simple single loop systems. The small tube guys can spin it anyway they want this did not apply 4 years ago as many are saying.
Now some of the german stuff did work fairly good in a single block low flow system that is true. But add another block and things went to hell in a hurry.
I feel good about what cathar new info. Not all the small tube guys were wrong back than . there were guys like myself that new what to do to get the performance out of small tubes. It was pretty simple really more loops and more money. And the use of pumps that others wouldn't use.

As for you Migueld . I have read a few of your post. I find you to be a Bob Hope type. TN was trolling bigtime. Not only that he attacked the messenger. Your right their are other trolls here. But most are long time members that helped build this fine forum . Not all debates are troll based.
Some would say I flamed you by calling ya Bob hope type not true I just find you amusing and someone I wouldn't take seriously . Bob Hope was a good man tho.