I note that the weekend training boost used to be +20%, which was noticeable. But now it's +10%? Why? If anything, the Wed and Sat training boosts should be changed to 20%.
If you are going to keep it at 10%, then you may as well just remove the boosts as there's no point logging on/waiting till those boost periods to do training, as the benefit is barely noticeable. Saves on hero slots as well since we don't need to wait for any particular time to train.