Thanks, I was saying the contrary without being too sure. To be certain, it would be a good idea to record a run and count how many damage numbers show up for a charge (if that's reliable).
But hey, if you water the fireballs, you may as well save yourself the trouble of using Autogun and use swords.
I've played the Vanaduke fight quite a few times, his fireballs and shadowfire tiles on the floor block DA holoblades, RSS shards, AP shots, Blitz shots, etc.