you have to remember that there is very little clearance between the heatsink and the CPU head spreader (literally like putting 2 dvds together). the only reason you put the thermal compound on is to fill any gaps and have a compete connection. 1 line should squeeze and spread right out super thin. if you put to much, it will squeeze out the sides and could contaminate critical circuits or other components. This is a case of More isn't Better. Its a case of, Just the Right Amount, not to little and not to much.