for training always keep your players happy, they will develop better and quicker as a team, so I would suggest having balance with the slider all the way to the left and have it on very heavy and have there individual training on heavy as well.
when you do this you will notice in your player training section that his workload is on medium and when you check on the overview training section you will see a pie chart that's nearly all green.
the more green the better.
Scheduling bar all the way to the left? So in a week with 1 game, you'll only train on the players attributes for 4 days, the rest on match preparation for the next game? With 2 games a week you won't get any training days?