One thing to note that someone may find useful. It wasn't obvious to me initially, but it is acceptable to install the Scheduled On/Off script with the new schduler. In doing so, you can use either one or a combination of both. I'm not suggesting that is a good approach as it will make things more complicated in the long run. However, there may be a situation where one is the ideal solution over the other.
In my case, I'm currently using the old approach for most of my modules and the new approach for a test module until I understand things. That way I can get started with the new scheduler without having to stay on such an old version of HG.