I'm not sure I quite understand the relevance of your question unless you're inferring that TT PRO46's use more exotic materials than the normal run of the mill ABx's use.

"Real world" curiousity prompted me to do a hands on test of the oft repeated warning that rich running of a new ABx would ruin it completely in short order (nothing to do with "running in"). According to that warning I treated my test engine abominably for 45 minutes by running it so rich I could hold the cylinder head for several seconds before it became uncomfortable. Remember, the aim of the test was to see if it would be destroyed, not to try to run it in (I have to keep repeating that because no one seems to get the difference). At the end of the test, far from being destroyed, it showed barely any signs of being run and still had the original pinch. Repeat, still had the original pinch.

Further running more like Dar's method (although in fact a little over 1000 revs lower than peak) showed localised over heating of the piston. I very much doubt this would have affected the end result performance-wise of the engine (although by now it had lost all its pinch) and if it happened in an engine then normally no one would know about it because who else would strip an engine down after being run in to have a look?

However, now that I've seen for myself that an ABx can (not necessarily will) have some damage from being run too hot when new, I've modified my own running-in process to try to avoid any possible damage. I'm simply passing on a "real world" observation of a test that I did as carefully as possible. The choice of what any individual does is entirely up to them.

But to answer your main question, I've never owned or run any TT engine of any description. However, the ABx engines I've run in have included an Irvine 40RLS, OS 46VF, Stalker PRO61RE, Rossi 45 and of course a Bluebird NS 51. To be fair, the only one I've run in after my findings has been the 46VF, the others were run in fairly rich but in a full 2 stroke. I now begin with a 4 stroke and slowly lean out to gradually build up heat.