First one is a strikerless and CMless tactic, it works better with subtop teams.
Second one s exactly the same except for the fact I moved one of the SS forward, converting him in AF. It seems this change makes the tactic more suitable for underdog teams.
Tactical style has not changed, it's still an high pressing - high tempo tactic with shorter pass.
I'm going to share also a screenshot of the excel file with some stats for both the tactics.
Please share your thoughts if you try them