Hi Orlando
Your knowledge on this subject seems high, as not many would query the thermal conductivity of any pads.
Would therefore suggest you go with best you can source yourself, as EVGA keep reminding people these are not absolutely necessary anyway.
If you are going to change/add these pads, then as someone who understands how they work, just buy your own of best performance possible and tell everyone how it went.
Alas, I come from times long ago when anyone who overlocked anything would always spend hours polishing CPU's and stripping down graphics cards to replace TIM etc, even before we started.
So just go with best you can source/buy and don't wait for freebies from EVGA or anyone else.
Just my take, as I would be watercooling and therefore changing everything anyway.
Ridesy