First off a hand grinders are ok but alot of work .Get a lem or a lem type product .. very good units.Picked one up at bps made by lem for bps for hundred bucks .. all lem products will fit it .I mix 50/50 pork but with my venison for sausage .I however do remove all fat from my venison as its more like tallow than fat and tends to make the meat taste sour or rancid.I grind my pork one time through and then my venison mix it well add spices and grind again all together.I tried 20 and 30% and wife said it was still to dry for her tastes.