So you've felt a real penis for comparison? I ask merely for information.
Since I don't touch my crotch on a regular basis, I don't really see a need for it to feel real. At least not yet. Sure, when transition starts, then I'll invest in a nicer pack. Until then, I really don't have a need.
Also, I don't want it to be "pasted" to me, which is what it sounds like most people do. So I don't think it will work for me. I want something that sits in there, doesn't stretch the hell out of my underwear, and isn't sticky or "cornstarched" to my body. I particularly don't want any food in my pants.
Now, I don't mind natural movement. What I mind is things like it switching positions, crawling up my thigh, or worse, falling out of my pants.