If there is enough skin available for decent aesthetic result of vulva and decent vaginal depth (like 5 inch), we can probably say that there was enough donor material from penile and scrotal skin. With years of hormones and previous orciectomy, there might be considerable lack of material (for some people, for some not), which would cause a need for either additional skin grafts (from groin, or thigh or abdominal area) or preferably different type of vaginoplasty, like colovaginoplasty.
Average or little smaller than average pre-op donor material, is usually enough. Most SRS techniques have evolved in this way, because most trans patients dont have above average donor material. Consequence are techniques like full-graft vaginoplasty and modern penile inversion with additional scrotal grafts for more vaginal depth.
Microsized penises and shrunken scrotum are a problem, and even surgeons who do non-penile inversion techniques, are more likely to suggest colon vaginoplasty for these patients, as the simply isnt enough tissue for both vulva and vagina, even with additional groin/thigh grafts.
Circussized penises are not a problem. Such patient is ideal candidate for penile-inversion, or peno-urethral flap. There is enough material for labias and vagina from penile flap alone, and no additional scrotal grafts are needed.
I have no idea what grower or shower means....
