Alright so i just got my Twice Fanged Serpent set, switched it with Spirggan's set, did a dungeon and noticed my DPS went down even tho TFS is a far superior set, it gives more of everything spriggan's set does. So i went off to test it off on a dummy and the DPS loss was there too. I checked my physical penetration and i only got 850 penetration bonus instead of 5x that. I figured it might not show the full number, maybe it's a bug so i tested my damage over time abilities with TFS set on and the damage never went up with the ticks. I switched to Spriggan's set and the damage was higher with ticks. I never weapon swapped during this, i had a full TFS set during the entire testing period. If anyone with this set could test it aswell would be much obliged.