There are some MK's and Akros which do look like Vitro All-Reds. But if it looks enough like an All-Red to make me unsure, then it goes in with the Vitro All-Reds. The odds say Vitro at that point.
Well, I do have a box of patches which I've simply given up on so they all live together in harmony. So maybe a fence-sitting All-Red lookalike would go in with that bunch.
But yours in this thread are classic Vitro.