Well so far from my testing of the Polarized Hull Doffs, they pretty much don't work well at all. The amount of Damage Reflected per Rarity is to low. The Chance that it reflects is too low. And the fact that when it reflects it'll only reflect one shot at the most every 4 seconds during the 15 seconds that Polarized hull is up. Do not waste a Doff slot on these officers at this time. As you will be disappointed in their performance. And this is from using 2x Rare versions. (Rare versions 4% chance to reflect up to 20% damage, Very rare is I think 5% chance to reflect up to 25% damage)
You think that your beta test was bad?
Think about this: American Football has been in open beta for 144 years. ~Kotaku