Looking for a new cartridge- Dynavector Karat 17D3 or Sumiko Blackbird

Very pleased with my Ortofon Quintet Black S.

I'm planning on adding the Pass X15  phono preamp which has suitable gain for a low output MC cart. Matching a cart with a turntable/arm and a phono pre can be very confusing with all the different dynamics involved. Thanks for all the responses. I'm leaning towards the Sumiko LO Blackbird...but actually finding out their not as available as the HO Blackbirds. Any idea where their available? Although I'm still open to ideas.

@krelldog .......Unless their websites are wrong, the following vendors all sell the LO Blackbird: Music Direct, Audio Advisor, Needle Doctor.