Same happens with me. I "collect" beautiful MK31s on faux ivory scales just because occasionally I gathered two and think "why not to make a 7 day set? They are cheaper, more abundant, less sought by shavers and so beautiful and good shavers than the ones scaled on real ivory". I already gathered 5 of them and I love them.

HOWEVER... The two razors I like the most to shave, because they just shave better in my hands, are an obscure Caudano Torino and a recent bought Ran Tan Ka Rus with a vast smile, both 6/8 full hollows. The red devil beats the Caudano in a single aspect: Its bellied edge, that easier reaches the hollows of my neck and face. Besides that, they are tête-a-tête.

I also like my wedges, framebacks, and other razors, but definitively shave worst with wedges, razors smaller than 4/8 or bigger than 6/8.