VPI Scout ...with Shelter 301 or Grado Sonata??

301? Do you mean the 501 mkII? If I could buy that for the same price as the Grado, I wouldn't hesitate. They are veery different carts. The Grado is a low output MM and the Shelter is a medium output MC. I don't know what phono stage the Berning has but you can contact David or check at www.davidberning.com

Remember, there is now a 301. It runs about $550, I think. Have not heard any reviews, but I'm sure it's better than the Grado, IMHO.

my input is 47 Kohms

If you do go Grado, to match the preamp, use one of the lower outputs if you can adjust your gain. The Statement Series is around .4mv and there is a VPI run out there at 1.5mv( I own a VPI Sonata). they are suppose to sound better b/c of the smaller coils(less wire). Haven't heard Shelter so I can't compare. Or you could get a step-up to play those lower ohm MC's.

Just pick either one and be happy. Unless you move to Shelter 501MKII then you will be very very happy!