Was taking some photos of my gear yesterday (for insurance purposes) when I noticed the fin on my Exo was twisted / warped. It was very noticable at the tip, but had gradually twisted from the base up. Has anyone else had this problem, and what causes it? I used this board / fin a bit over a week ago and didn't notice it behaving differently (A better sailor might have noticed).

I had that with a glass fin before. It was resting with pressure on it and ended up bent. I just heated it with the heat gun and bent it back slowly. Easy.

how old is it easty

Asymmetrical, they're fast.

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Leave it in the sun on the dash of your car. Might be a bit cool this time of yr, but works in summer.