P5B deluxe +6300 and Core 2 Duo Temperature Guide

OK, so from what i understood from the guide is that some software including Motherboards (in this case asus probe2 for me) reading utils may show inacurate temp results and that with the help of this guide you can fine tune the temps with the help of TAT and Speedfan. So in other words TAT tj is 97% acurate with the internal temps? and that with the use of the TEMP charts that u have handed, u can use this for a guide and finetune speedfan to get actual temp readings, right?

Ok, digested that, i have a p5b deluxe Rev c1 mobo and a 6300 c2d Rev L2. now i just want to double check something, I was using Asus Probe 2 to see if there where any -+ offsets so i can configure speedfan to acurate results so i got this readings:

IDLE:
TAT: Idle 43,
Probe2 cpu temp: Idle 39
sistem temp: 39
LOAD:
TAT:Load 59
Probe2 cpu temp: 55
sistem temp: 42

now from what i understood from the guide and looking at the chart is that if idle my tj temps from TAT are 43-45 then my proc Tc should be 30 range, then this means asus probe2 is 9 higher right? and at load if my temps from TAT are 59-63 then my proc Tc should be at 40-45 and not 55 like asus probe reported?

if this is true then i must adjust speedfan offsets (in speedfan i was getting from default instalation the same resutls as of probe 2 execpt that the core1/2 temp was far more lower than TAT readings..i was getting 27 idle) so yeah i adjusted the core temps to an ofset of +16 and gave the CPU temp an offset of -10. Now with these fine tunes i made i get a speedfan and tat reading:

IDLE
TAT:43
Speedfan CPU Tc: 30
sistem temp: 39

LOAD
TAT:59
Speedfan CPU Tc: 46
sistem temp: 42

i dont know about the sistem temp tho, since asus p5b deluxe uses a heat pipe for cooling the nb. so i left that un moded.
now heres the real question ^^... im i doing this right? lol