Pozidriv bits break!
Stop using fragile PZ2 bits!
tl;dr: Use TORX SCREWs, they break far less than fragile Pozidriv
Why do they sell packs of PZ2 screwdriver bits?
Because they break!
Do they sell packs of Torx T20s bits?
Now ask yourself why, and make your own conclusions why one is better than another.