I used to notice the most when I applied Minoxidil (I use a latex glove and the number of hairs that would stick to the glove was like 15-20, and easily 2-3 times as much in the sink).
Right now, I might get 5 hairs on the glove at most. And in general I notice quite a bit less hair everywhere, I'd say it's similar to the amounts a person without male pattern baldness would experience.
I don't have so much of a problem with oily scalp but I do have dandruff, and that is because of all the topicals containing various chemicals like alcohol and propylene glycol. It irritates my scalp a bit. I should probably try some oil as conditioner or something.
You mean scalp elasticity? I don't know, I don't think it's changed much. I used to do scalp massages before and I actually think my scalp was more loose way back then, but that didn't do much for my hair heh. Overall my scalp feels normal, no itching, not oily, just some dandruff.