I do use Prime for stress testing, as i believe that Intel's Load test really is just synthetic, as prime is actually using math to stress it therefore you can get errors. Intel's is just load probably a bunch of whimsical calculations to load the core.
that being said, i just want to use TAT to measure TRUE core temps. The TAT i have (still calls it a Pentium M) only executes on cores 0 and 1, im just looking to monitor CORE TEMPS with TAT.