As far as shifting more or less. I find that I shift more. Each shift often shifting both the front and back at the same time. It us often where I need to move 2 cogs in the back. The next shift is 1 in the front and only 1 in the back but the back is an opposite of the previous shift. Looking at it in a gear calculator makes it easier to follow the pattern becomes repetitive.
I just use the right hand for both so I can shift them both at the same time