i use Hi Mountain myself, choose the meats that are as lean as passable for best results, are you planning on grinding it or slicing it into 1/4 thick strips? if your grinding it you can remove almost all of the fat providing that you have a meat mixer, i have the LEM 17lb mixer. chill the ground meat in the fridge then put the meat into the mixer and start cranking, the fat will start to build up on the paddles and sides of the mixer, after the inside turns white take the meat out and then scrape all the fat out, then put the meat back in and repeat till there's no more fat buildup on the inside of the mixer.
at this point the meat is as lean as it gets, if the fat is left in it as you eat it the fat coats the inside of the mouth and hinders your taste of the spices, the fatter the meat the worse it gets, you can compensate by adding more spices, to test this get a pound of ground pork and spice it up and dry it, 2 to 3 bites of it and you wont taste anything and you mouth will be slimy
the fat content in meat varies even after cutting off all visible fat. and it doesn't have to be very much to alter the taste from batch to batch using the same cut of meat each time. thats why i dry a small amount of it first to see if its spiced right.