Just did an Aimpoint lesson with my instructor, I really like it so far and my reads were pretty accurate when I was practicing compared to what his digital level said.
Need to continue to spend time practicing to get calibrate, but I am encouraged by the results so far.
If your group is not out of position, then I agree it seems rude.
The only time I will start walking to the next tee is when we are obviously falling behind. And usually then I will acknowledge by saying something like, "hey I'm gonna go tee off so we can keep up the pace."
Whenever possible, I will wait for everyone to putt out. In a casual round, it's just a courtesy. And in a competition, it's a necessity if you are attesting to their score.
Yeah, in this case, there is really no justification for this behavior.
Doesn't seem that it would help the pace of play, unless same guy gets to the next tee and hits his drive (while the guys back on the green are still putting out). Nevertheless, pace of play is determined by the slowest golfer in the group. Unless you leave him/her behind. So to me it just seems rude/selfish/self-absorbed. If I am wrapping up my 2 putt and out of the corner of my eye some guy is already down the path, back toward me, that would tick me off. Now, if he's headed to the restroom or the beverage cart, that's different.
Don't understand why someone would do it in a competitive setting. I haven't participated in many competitions, but in each one we all hung around the green to confirm scores after each hole. Definitely odd.