A nice plant, Mark. I note the confusion over the name. Lau puts a big ? over it, saying that it was D. Hunt who first introduced the name of gilensis as possibly applying, but when he visited San Gil, he found very different plants. I can't see the affinity with rettigiana, which has a different flower shape, and comes from between Guanajuato and Dolores Hidalgo, a good distance from El Salto. Linzen also identifies a plant he found in Jalisco as being rettigiana (TL072).
It does look like a crinita form, in the widest sense which, of course, is what the Fitz-Maurices employ.