After recent updated on playtest, I test DEE and PRM with 2-handed weapon.
When using 2-handed weapon, the base weapon damage will be count in for right-hand casting and both-hand casting (60% chance). But it is regarded as 0 for left-hand casting (40% chance).
PRM:
Character Sheet shows damage ~3k, at least 2.6k.
right-hand casting and both-hand casting, damage ~3k
left-hand casting, damage ~1.5k, much lower
DEE:
Damage at least 1.4k
right-hand casting and both-hand casting, damage ~1.5k
left-hand casting, damage ~0.5k, much lower