Perhaps we can deflect some attention from coaching and argue components…
I've had 7800 on my race bike for a dog's year. It's grown a bit too high maintenance. I'm not sure why, but I seem to keep going through cycles where the chain drops. It gets adjusted and fixed, but it'll start up again. The rear shifting seems to need a bit more english to work as well. It might be time to give up on it. I don't have any interest in going 11 speed, and should I replace stuff I need to do it on the cheap.
What's my best bet?
I think I'd just need shifters and derailleurs, unless I went electronic, which still seems like fixing a problem I don't have and I'm not sure it's worth the surcharge.
Is 7900 any good?