Yup- top rack, water pan half full. It was a 6 hr smoke or so.
I put only a small amount of water when heating up the smoker- it gets the temps up faster .My dealer told me she puts water into it when it is already hot but I do not like the idea as it will warp the water pan if it is hot. So just a small amount will get temps up fast- then fill up half full once you overshoot your desired temp by 50 degrees-the colder water will bring it back down.
I then had to fill it up half way again once more during the 6 hr smoke. The benefit to this- I learned from my dealer- is at the end of the smoke, most of your water will evaporate- so it will make clean up easier too.