Don't do jokers and BBB at the same time. This is said by Jim many times in this forum.
Mixing high intensity and high volume is usually a bad idea. I know there are Smolov and other monster-programs around there, but for majority of people it is a good idea usually do intensity and volume separately.
Jokers can be used intuitively as posted above, but many for many people this kind of autoregulation is too advanced (= they are too eager to do more than they need), and doing jokers in your regular training will do more harm than good.
So, do BBB and Jokers in different cycles. Here's an example:
6 weeks of BBB
6 weeks of FSL
3 weeks of jokers
I am not expert in training, but I know how easy it is to spoil training by doing too much. Think your goals and plan in advance, so you don't try to do everything at once.