I have to say I'm puzzled by the earnest suggestion of Alain Delon as IEI.
In this interview he displays none of the ‘sincere’ communication style IEIs have.
He even looks angry during the whole thing but that is because he communicates in a very drumming, no-nonsense ‘cold-blooded’ style.
He says, without missing a beat, that he considers himself a man of action. The fact that it comes so naturally and quickly to him and that the statement tags so seamlessly to the rest of his speech for the whole scrap tell me it's true that it's closer to the truth rather than an IEI pretending to save face. An IEI, for starters, would have a really hard time saying out loud that he's a man of action. This is a painful spot for IEIs, difficult even in conversation and something they feel very self–conscious about.
Communication-wise IEI with SLE this is how it works: both types meet superficially, still with the baggage of other less favorable ITR then dualization ends up with the SLE expanding unchecked and the IEI becoming ‘their true self’: a more silent, nice and accommodating version of what's already there. But the IEI is always, whether dualized or not, adjusting to his or her conversation partner and visibly ethical.
I feel Delon's communication style so much precisely because I have experience with men like him and I'm always guarded about them at first: their “cold-blooded” style can land him on LSI and SLI and make the whole experience totally different. Gulenko types him LSI and he walks a fine line between quasi-identicals.
Quadra outsiders can decrete types using original external parameters and it’s ok because other quadras can seem a bit of a puzzle to most of as, but intraquadra ITR have these nuances that are harder to escape.