In my opinion, GC .84 shaved similarly (in efficiency) to Karve C plate. Although The Karve C (for my skin type) was significantly smoother than the GC.84. The D is a step up in efficiency than the GC.84. GC.84 is smooth but no where close to as smooth as the B plate in either Sb or Oc format. (My Karve is in Stainless steel) Karve stayed, the Gc .84 went to BSt. I enjoyed my GC .84, efficient & smooth and delivered great shaves as well. All in all I prefer Karve razor.