Wheelz has asked me for other information re: time, temp, wood and internal temp when cooking my sausage in the casings. My experience is somewhat limited as I have had my 008 for just 13 months. I've probably only made and smoked three batches in this time.
I generally make batches of 8 to 10 pounds, depending on the butts I can get and the trimmed weight when I'm ready to stuff. I rarely smoke more than half of a batch, however. I usually keep the other half "fresh" as many people call it. I will usually par boil the fresh half (5 lbs.), freeze it and when needed, bake/roast it in 2 inch cut pieces. Sometimes you just can't use smoked sausage in a recipe. The old Polish recipes I have call for fresh most of the time.
When I stuff sausage, I'm aiming for around 8 oz. in a 6 inch link; therefore, 1 foot = 1 lb., more or less. If I'm smoking 5 pounds I'm usually looking at around 10 links of sausage which easily fits on one shelf of the 008. I try to coil it with space around each link.
Given that it is only one shelf and I'm mostly a weekend-only smoker, I try to fill the other shelves with additional meats that will fill menus for the next week or two. Guess, I'm suggesting that time and temp is relative to what you might use if it were only sausage. I tend to go with max temp (e.g., 225 - 250) for the first part of a cook to get the smoke going. I find that if I start at 200, I can't get enough smoke before my product is cooked, unless I'm cooking for more than 4 hours.
For sausage, I usually put it in early -- hot and smoky. Then I resist looking at anything for two to two and a half hours. I'm looking more for color in sausage than I am in temp or doneness (is that a word?). If you're like me, you're rarely going to eat five pounds of anything in one sitting. I usually freeze most of it for later. Then later, it usually goes into another recipe (gumbo for example) or I roast it, grill it, or pan sear it before eating which finishes it off (if necessary). Even if I'm serving some the same day I smoke it, there's nothing more likely to get my guests salivating than to smell some smoked sausage finishing off in the oven or on the grill, just prior to their meal.
Probably much more than anyone ever wanted to know about my technique. I'm still learning thru experimentation, so any of your tips and trick will certainly be appreciated as well.