Thanks! I worked hard to get them.
It really depends on what you mean by mechanic work. Mentally, I think about my mechanics constantly and try to take mental 'reps' throughout the day. Maybe when I'm watching t.v. and it's a commercial, listening to music, or doing chores or something like that.
I throw as often or as little as I like. I usually like to long toss and then go into 'mechanic work'-like what you see in the videos, on a mound-but I don't force myself everytime to long toss or to do extensive mechanical work. An example would be before that video, I didn't long toss at all. I warmed up well, but I kept it around 90ft.
When I throw on my own, I don't hold myself to a certain number of pitches. I try to listen to my body and go off that.
I do mechanic work everytime I go out and throw, though. Whether I only do a couple of pitches or a bunch, I like to work at my mechanics every chance I get.
I don't have an exact number of times I do it or an exact number of reps and stuff, but I do have one rule when I do go throw. I throw until I can't do it wrong or until something hurts.
You could very easily do drills to work on mechanics every single day, whether you actually go out and throw and not. I find that when I'm thinking about my mechanics, going through my motion slowly as I think, helps me to better visual what I'm trying to do.
Listen to your arm and your body and be smart about them.