If you have spent a lot of time studying how to improve your vertical jump and you want to make your own program or tweak an existing one thats fine. But people here spend way to much time asking questions about things that it clearly states in the VJB. I would do it as many times a week as the program says.

I general do strength training immediately after plyos. An am/pm split could probably also be used. The key is not to overtrain.