Yandersen wrote ...

Let's concentrate on topic instead of feelings as we are not the girls. :)
As your caps are polar, they don't like repolarization - life time shortens, parameters quickly degrade. Antiparallel diode protects caps from that process, but slightly degrades the performance of the shot - unused energy slows down the projectile instead of dissolving electrodes of your cap. I'm against monkey-designs, you know, but I even more unhappy if I see kamikaze design of cap-killers.
So after all, just put powerfull diodes antiparallel to your caps unless you are going to try non-polar ones.