the performance of the Swiftech wbs (until this 5000) are dependant on the effect of coolant velocity to locally increase the convection rate over the die area
(the 'jet' reduces the boundary layer thickness)
if the flow rate is the same, or nearly so, increasing the connection size reduces the velocity
the article explains this and illustrates the effect of a smaller nozzle for the -UH
Bruce at CoolTechnica has offered to send me a 5000 (Gabe is strangely silent),
so inquiring minds should know 'how the cow et the cabbage' in a couple of weeks
and I have NO faith, or trust, in Steve's ability to design, perform, analyze the results of, or even report on a wb test program
his record is clear
the better graph,
Chart 4