In case anyone needed pad sizes for the Palit 3070 Ti Gamerock OC - and I believe between the fin stack and midplate you'll use 0.5mm pads : r/gpumining
Th9215b2h-pfc01 Dc12v 0.45a 4pin Graphics Card Fan For Palit Rtx 3090 Rtx 3080 Ti Rtx 3080 Rtx 3070 Ti Rtx 3070 Gamerock Oc - Fans & Cooling - AliExpress