Tips from all you great pot roast cookers?

I like to cook mine for the full 8 hours on low..it will come out so tender it just falls apart..here is my recipe..place seasoned roast ( i use chuck roast only as it seems to be more tender) on bottom, then stack on top in this order,1 tsp chopped garlic,1 small chopped onion (be sure to make all sizes large as they will shrink) chopped celery,chopped carrots or baby carrots,chopped potato's or whole small red potato's, then add 1 cup of beef broth then season the top part of the potatoes..cover with lid and let cook on low for 8 hours or if you don't have enough time put it on high for 3 hours then low for 3.Don't put the veggies on bottom or they will be mushy.On the last hour I like to add whole on mushrooms.. I have given this recipe on here lots of times and the ones that try it have picked it as best answer..Not bragging, just telling you it's a great roast..I tried many recipes , and using canned cream soups too.,.I didn't like those as it changed the flavor of the roast..made it more like a soup than roast.Just experiment each time you do yours till you find a recipe that works best for you.