It seems that most of the information you find online about packing with llamas comes from people who do not hunt and tend to be a little on the hippie side of things. They view their llamas more as "trail companions" than working animals. These people tend to give lower packing weights maxing of 60-80 lbs. But if you find an online source or a book written by someone who hunts with them they will almost always give capacities of 100 lbs and many have packed much more in specific occasions. (see squirrel above and the short pack out I already referenced)Idelkslayer,
Are llamas a concern to big horns like goats? Do you have to pack food for them?
100lbs is a good payload, better than I've read from others. The reason I went with goats over llamas was the mobility and I kept reading that llamas would only do 60-80lbs. Which didn't seem efficient pound for pound compared to a goat.
What are your complaints about llamas?
I do not think there is any cause for concern with disease transmission. Several studies and closed pen experiments have shown no disease transmission from llamas to bighorns.
I don't have many complaints about llamas. They need their hooves trimmed twice per year and I usually shear mine in the spring to prevent heat related issues while packing in the summer months. I have never needed to pack extra food for them. They won't eat just anything like a goat might but they haven't had any trouble finding enough to eat. One complaint is that they stink when they are wet. They also have an interesting habit of always defecating and urinating in the same place. To the point that they build up a large pile of crap in one spot. You may view this as a good thing or bad thing.
They have an aversion to crossing water and will try to jump across. I have to slow them down and make sure they cross slowly so they don't jerk on the llama behind them. Once they get one foot wet they usually relax and act like it was no big deal. Usually after the first couple water crossing they relax and start to go in without hesitation.
I leave mine in camp while hunting or fishing. Contrary to most llama packers who only stake their llamas out I high-line. I had one llama get very badly tangled in a stake line once. Since then I have only high-lined and had no issues.
I build my own saddles but I use army surplus duffles for panniers. I can get them for $8-12 each so a set is pretty cheap.