I’m not sure what the question is. Never, ever have I EVER mentioned doing Jokers, BBB and FSL. In fact, nothing I’ve ever wrote could be interpreted as that. I assume that you want to do all three? if not, I wouldn’t do that.
“Weak areas” is the biggest con, right next to “confusing the muscle” or “changing the exercise” in the training world. Real weak point training looks at the bigger picture: Strength, mobility, conditioning and recovery. You figure out where you are weak in those four areas and you’ll solve 99.99999% of your training problems.
I would advise a balanced and well-programmed training template - periodized for 5, 5/3/1 cycles. There are numerous examples on this forum of how to properly structure a program using the basic ideas that Rattus listed above. Not everything exists on “11” in training. That is how you overtrain and get weak.