Because it's all you ever do? and your tolerance is as high as the great wall of Peru? There is no great wall of Peru.
Yea, tolerance build up is a bitch, do what I am doing stop for a while then smoke some nice shit, or just buy the most crucial bud you can buy. What I hate the most is when i pack it to fat so that it doesn't pull or cherry... than you gotta pull it out and repack it after its charred.