I'm using an Ortofon Winfield. When loaded as directed I too felt that the highs (openness) was not quite there. I experimented and found 1000 ohms more to my liking....of coarse, its just a matter of taste.
Cartridge help
Recently replaced a worn Sumiko blue point evo3 with an Ortofon quintet blue, everything appears to be set properly but my high end is missing. The new cartridge has about 25 hours on it and is being used with a VPI Scout Aries and a Parasound Halo 2.1. Any helpful suggestions would be appreciated.