Questions about a new Ruby 2 cartridge

Just purchased a new Ruby 2 and it sounds lean and somewhat bright out of the box. Currently have it set at 47K, any ideas on break in time and loading. How about those cartridge break in boxes, are they worth the investment? System: VPI Aries,JMW arm, Klyne phono,AR pre,Rowland amp, Vandersteen 5 speakers, Hovland phono cable, other wire all Discovery. Thanks for any help, always a little disconcerting when you spend 3K and the sound is lacking.