when ever your making sausage or kielbosi with venison its best to use lots of pork,I mix it 2/3 pork and 1/3 venison anymore, when I would mix it 1/2 and 1/2 it was to dry for my liking,I know it sounds like a lot of pork but if you want it not to be dry thats what it takes,use pork butts and buy the ones with the most fat because thats what you need.I also make a small pattie out of what ever Im making and fry it up to see how it taste before stuffing it in the casings this way you can adjust the seasonings if you need to,it can get exspensive if your making lots,I watch for sales and if you have a meat processing plant near you there cheaper than the market. good luck