1% drop rates... a thought expriment.

[FelisC]

Until the seed resets, you may have 90% chance of seeing wave bow, and then the next seed the mirror will have 20%. Overall, with the pool of numbers available to form the draw, the mirror may have 1% (or any other %, for that matters), but it may vary greatly from one seed to an other.

This is absolutely not how seeding a RNG works.