I did try to send an email to the London Team but I never received a reply to that email either, though, in that particuar case I am not entirely sure I had the correct point of contact as most websites reasonably assume you are a UK citizen going through the NHS and direct you to contact a Gender Clinic. If anyone has an email they know they can be reached at I would certainly be grateful.
My preference for Abdominal Phallo is that I prefer a pedicaled technique as the risk is less for flap failure and it doesn't require a graft- you get direct site closure. They also tend to result in a shorter but girthy phallus and my fave packer is 4.5" and decently thick (I think I'd want an extra half inch on my actual penis, tho), also, depending on how the surgeon cuts the flap I am the least hairy in that area so less electrolysis. Beyond that, I simply prefer the look, I found in perusing transbucket and similar sites that everytime I thought, "damn that looks amazing" it was ab-flap. But my number one goal is avoiding a graft scar which is why a pre-expansion ALT would be an acceptable second-best.
I've also heard of MLD butI've heard the nerve they take is a motor nerve so sensation isn't great while with ab-flap w nerve hookup I've heard how good sensation is (they do take the same nerve as RFF if they can find it). Also, the idea of taking a piece of my muscle and re-purposing it does not really appeal. I like going to the gym and I think all of my muscles should stay where they're at.