Vintage Links are generally not as popular on alto as the Vintage NY Meyers.
I did speak to three different refacers and they did say the facings on the Aizen's are actually not that accurate. One of them Sampled an SO Alto, and a NY Alto and they both had facings that were asymmetrical. and the other two refacers refaced a LS Tenor, and SOP mouthpiece and again they had asymmetrical facings as well.
I have played an old Ishimori mouthpiece (not the current series) and it responded amazingly well. And the facing was checked to be accurate and it was, way more than the Aizen's.