You can get empty carts if you want, but the attys usually come with whistle tips and you can just drip on the atty if you want. And there is no such thing as a "dumb@$$" question
Yep, that's me! Thanks! I actually own a video production biz and have a slew of pro gear, but the cam that I used for that was the Canon 5DMKII and I used a Sennheiser wireless lav kit for sound.