Thanks a lot for the reply rjr, much appreciated.

The thing is that most of the drivers at the european tracks see 120 deg. C. as a maximum, and I have some fellow drivers running their R&B's with 100 deg. C with minimal smoke and good performance (all temps taken with my IR gun).
But the Novarossi mills seem to like higher temps. My old 35plus21 (RIP) was also running at approx 120 deg. C.

I think the high temps add to the short lifespan some of my engines had in the past...