MY first grind blade is very course.Then I have three more blades,each finer yet. I do the 2nd grind with the most course of those three.My grinder is a cheap Northern Tool $120 one and it has lasted about 20 years grinding 1-2 elk, a deer and an antelope each year. If it clogs,it is usually on the first grind. If I only grind once with the first blade, the meat is too course.But if you can use it that way, you don't need to grind twice.Personal preference
I suspect , you didn't trim out the sinew enough, the blades on the grinder need sharpening,, or you didn't have the front ring screwed down tight enough. Only an idea. I might be wrong on all three counts
