Good question. I've been full time for 8ish months and if there was some aspect of dudeliness I still liked, well, I'd probably want to hang on to it. I can't really think of anything that used to be better.
Roll out of bed, slap on a pair of sweatpants and a hat and walk right out the door? That would remind me of whom I used to be. I am willing to get up earlier and make an effort, as it makes me happy to look the best I can now. I was deprived of this forever. There may be a day in the future when I love the way I look without makeup anyway, and this will be optional.
Pee standing up? Nope. I don't miss cleaning up dribbles and having my wife complain about them. Plus, potential dysphoria trigger. I want it outta here yesterday.
I don't miss the wardrobe, and I had a thing for Armani and Varvatos. Maybe if I really felt like butching it up one day? Nah.
Safety? I don't go places that are sketchy anyway.
Muscle mass? Still have too much. I could still tear my brother's arm off armwrestling, and he works out.
Nope, I like love being a girl.