First splatbook I asked the DM to approve? OK, I had to look up the term. I figured I knew what Stellios meant, but wanted to be sure.
Based on that you'll probably guess the answer is 'None'. And you're right, I never have. As a DM, I've allowed some and disallowed others, more precisely I've allowed some elements and disallowed certain pieces.
But I've never bothered to run a splat class myself. Frankly, I haven't come near to exhausting the possibilities of the basic classes, so I'm just indifferent to the allure of odd variants.