Well from what I experienced yesterday it is not a 25 or 35% it is more like a 10% chance of reroll or less. From all the drops we had only 2 people had the chance to reroll and it was for an orange item on BS levels. We got 4 pinks and none where because of the hat and we all 5 had the big luck hats.

Temporary or permanent I don't think this will affect either the game or economy as much as some people think at least from what I experienced. I grouped for a while with Mitsu, DT, Elly, Physio Rae and some others I was only for a couple of hours at most.

I want to ask all the players that have been farming if you truly had a reroll for a pink? and how many times you think you reroll for an item and how many if any where pink?

This isn't to start a debate just to see if we can get a bit more accurate information I am sure Physio and a few others are trying to check out the numbers.