I'm not an expert, but I can tell you that sometimes too much of something can be a bad thing. The whole reason the thermal pad is squishy is to do what TIM paste does - fill in the cracks. Adding more paste essentially adds another barrier (believe it or not) for heat to pass through. Even if it did help, thats way too much. The only 2 things that help are the metal strip disipating heat directly to copper and the extra height it gives, which creates more pressure on the pad (better heat xfer). IMO the better thing to do would be to solder or glue (special thermal epoxy) on a small chunk of copper or brass (aluminum needs special solder).
v7 & Messiah2
location: Iraq; coordinates: classified; mission: replacement for 'shelled' ps2
v10 & Matrix Infinity
location: my room; mission: Army reserve...