Does anyone know if an early first puberty has any indication on a quick and early second puberty? Like if you're body started changing earlier (puberty hit in the 3rd/4th grade for me) that you'd start seeing effects from T earlier on? For instance would facial hair and voice hit harder earlier for someone who developed younger the first time around? As if the body was able to pick up on the hormonal changes and act accordingly with more vigor then someone who was a late bloomer.

I have no idea but I didn't get puberty till I was 17 (which I assume is late compared to all the people I know)... and the T changes seem to be happening quickly for me.

I don't think there's any correlation, looking at me versus my friends who are also on hormones. Speed of changes probably correlates more to your T levels than anything but even there it's extremely individual.

Puberty doesn't happen at different ages due to different responses to the hormones. It's primarily because people's bodies start producing those hormones at different ages. "Late bloomers" usually don't react unusually slowly to the hormones their body produces, it's just that the body starts producing them later.

Hmm. My doctor asked me in my appointment whether I was wanting to transition quickly or slowly and that would indicate what dose she would put me on. We agreed on a neutral dose kinda in the middle  because I was scared I wold regret my decision but now I'm thinking of asking to go up. Not that I haven't witness a lot of changes but if she feels that going up in dosage would correlate to my transitioning faster than how do I say no to that?

Based on responses here, I would say no. I started puberty at 9 and T worked very quickly on me when I started at 25. BUT I also had a preexisting hormonal condition that gave me elevated T levels pre-everything.

There's no real way to say how a different dose would affect you. T affects everyone differently.