I'm not 100% sure... If I recall, the striped part of the erectile tissue is the one that swells when men get hard. That's why it's used for the clit as womens' clits can also get swell during arousal. I don't have a dick so I could be wrong.
This I know! The prostate is there to act as a "gspot" so that they can be aroused when they are fucked in their front hole. From what I've heard though, pleasure during sex is a hit or a miss.
Yes, and there's many types of SRS for male to females. There's the classic penile inversion; the Sigmoid vaginoplasty, the one where they use colon tissue for the hole (which is "self lubricating"...); and there's another method that's up and coming called peritoneal pull through. I'm not too well versed in that method, but it seems to be that your peritoneal (abdominal cavity) is pulled downards to make the hole. Apparently it's self lubricating as well, there's less need for dilating, and more depth.
www.mozaiccare.net
Oh yeah, I've never seen a very good SRS result posted by troons online except in professional porn, and even those don't look like a vagina. They're selling a fantasy and I wouldn't be surprised to find out that the botched surgerys is why troons off themselves. They invest so much time and money to get the surgery, but when it's done the procedure just highlights how they are different than and will never be women. They find that they will never catch the dragon and realize that they wasted a lot of their lives to end up with a rotting hole.