TDX-silver
http://www.overclockers.com/articles1027/
strange result when compared with the earlier TDX review
TDX
http://www.overclockers.com/articles1022/
with nozzle #4, he has pressure drop at 1 gpm in the TDX of 14.1" H2O and in the TDX-silver of 17.2" H2O.... over 20% more!
surely they should be identical as the design is the same????