As far as I know, the answer is no.

You have to understand though that the "difficulty" that a pool tells you to mine is different from the actual difficulty of the coin itself.  Really, the difficulty the pool gives you just adjusts the amount of work you do before returning results.  Giving you a low difficulty when you have a high hash rate means that you're banging the server more frequently, asking for more work and returning results, which will greatly increase server loads, which can kill your pool.