Hi, Gents.

I've been shaving with straight razors for about a year now, rotating a Filarmonica 12, two heljestrands (MK1 and MK31) and a Dovo Fritz Brach 42. My beard is pretty dense, with hard and thick hair. My best shaver is, without doubt, the MK31, but I really have a lot of resistence shaving the below-to-back of my mouth corners, where the whiskers are denser.
I saw some models specially-purposed for tough beards ("especial para barbas duras", some french "special pour barbe très dure" etc.) and I realized these models are all wide-bladed.
Would I benefit from a wider bladed straight razor, like a #14 or a MK33 (men, I love this steel)? Kind of grind also matters?