Pete Great question! Yes, the recommended 2 quarts of water does make stuffing much easier than if you were to use 1 qt. Now, using that much water will make your cook schedule a little longer. So, if you are not concerned with making your stuffing easier then you can use 1 qt and your cook time will be faster. I’ve never noticed a difference in the smooth or wrinkled texture when adding 1 or 2 qts, mostly when I see wrinkled casings it’s either cooking too hot too fast or lack of protein extraction during the mixing phase (if you haven’t seen it this is a pretty good video on protein extraction https://www.youtube.com/watch?v=wStH-RtQUY8).
The consistency of the meat when adding the 2 qts of water might be significantly different depending on what binder you are using, I almost always add carrot fiber and that holds up to 26 times its weight in water. If you aren’t using a binder it might have a slightly soupy consistency but that excess water will cook out during the smoking/cooking process.
Let me know if I didn’t understand part of your question or if you have more!