Kevin's website is excellent, and I've commended him on it in private correspondence. (Will try his chili recipe at the next opportunity.) His way of mixing spices into sausage is the way I do it, the way I was taught, and, therefore, the correct, best and onliest way. (ok, dammit, insert smiley face.)
The bible on sausage making, "Great Sausage Recipes and Meat Curing," by Rytek Kutas, recommends about 5 cups of ice water with the spices added to a portion, run through a blender, recombined and then distributed through the meat. I think so, anyway. Been a while since I've read the method or the reasons for it. But the point that's important is that you must distribute the recipe through the meat thoroughly. Get a butcher's lug for this purpose. They're cheap from Cabela's if nowhere convenient. It is of ideal dimensions for folding meat around, over and through, and also works just as a tote and storage container.
In addition to serving as a vehicle for the even distribution of spices through the meat, the water helps with the extruding process, lubricating the effort better when you force it into casings. Really, though, if you stay away from synthetic casings, which you need to do if you want to smoke, then you don't need the water. I don't use it.
Here's a pretty standard recipe, this one from Kutas:
To 25 lbs of pork butts, add 2/3 cup salt, 2.5 Tb ground white pepper, 5 Tb rubbed sage, 2.5 tsp ginger, 2.5 Tb nutmeg, 2.5 Tb thyme, 2.5 Tb ground hot red pepper.
If you are going to smoke this, add 5 tsp of D.Q curing salt, as it is known if you buy it from butcher-packer.com, or Instacure, as it is known from sausagemaker.com. Otherwise this makes a nice fresh farmer's sausage, though I leave out the sage.
When I'm fooling around with a recipe, I mix some up, move it immediately to the cooler and let it sit for a while. Fry up a small portion. You can tell then if you need more or less of something. In this case, you can adjust for pepper if you wish, or strengthen any of the flavors that you prefer.