as scientific as "likely" ....cheers 
If we are to be scientists we should perhaps quote guy who said that epoxy is not necessary to re-secure the heatsinks as the glue was there to hold them in place during shipping but I digress...just trying to give SAFE advice to someone who clearly has no idea what they are doing (OP)
SAFE advice could be just an opinion without proper scientific evidence backing it up. If we are to be scientists we should perhaps quote guy who said that epoxy is not necessary to re-secure the heatsinks as the glue was there to hold them in place during shipping but I digress...just trying to give SAFE advice to someone who clearly has no idea what they are doing (OP)
Now you are just talking shit.
u took 1 heatsink off and reapplied grease to it and call it safe without having the board schematics...try doing what the OP did and post your results ...have you re and re an entire machine to base your results on? I have... and the OP has fucked up his machine as you can clearly see from his results so please put your ego aside...or paste up an entire SP20 with AS5 and post your results like the OP