As soon as I started to be consistently read as male and started to see that my presense in the women’s room made women seem uncomfortable, I ventured into the men’s washrooms. I haven’t found it particularly stressful. I don’t worry too much about whether other guys can see that I’m sitting to pee by the way my feet are pointing. I figure that even if they did notice, what guy in his right mind would call me on it?
It’s only stressful in two ways. One is when I’m with my son. He knows that he’s supposed to call me Jacky instead of Mommy in the men’s room. I’ve explained to him that some people might get mad if they heard him call me Mommy because it would make them think I’m a girl. But sometimes he slips.
The other stressful thing is when all the stalls are taken. Since I have to sit to pee, urinals are not an option. Men’s washroom etiquette seems to dictate that you don’t wait for a stall. The one time I stood and waited I got tons of weird looks. So I leave and come back. But when you really really have to pee that can be pretty stressful.
I haven’t practiced peeing with my Stand To Pee device very much. I should because I’m starting to see the practical applications of learning to pee standing up. It’s not that I attach that much value to it as such but being dependent on there being a free stall when there are sometimes only one or two compared to four or five in women’s rooms (as was the case in this particular mall) can be quite the stress. Not to mention that when men use the stalls they take forever. What, do they carry newspapers with them everywhere?? 
