Does Bane find LSI's lacking, emotionally? I don't recall him ever saying that. He does seem to keep them at arm's length, but there could be other reasons for that. I'm wary around my duals, too.
I actually see Bane as EIE. I only know two male EIE's irl, and Bane seems similar to them both. He does not seem LIE to me. He is perceptive, rational-seeming, and skilled in interpersonal relationships (by which I mean he gets away with saying shit that would never fly if I said it. )
I do see Bane as similar to me in some ways and different in others, but I think that can be explained by Business relations.
"Valentina Meged, Anatoly Ovcharov
These relations are effective when it becomes necessary to organize a new project, to overcome difficulties, to cope with the extreme situation or win in a competition. However, things may change if discussions and theoretical talk start taking precedence over real actions. In these cases mutual aid is difficult due to partner's having different approaches to the same problem. Despite the fact that partners can properly evaluate each other's work and are able to understand each other, they try to impose their own understanding of what is happening on one another. Such disputes further lead to search for deficiencies in one's partner and cooling of these relations. At the same time, difference in their respective worldviews supports mutual involvement and interest in one another. These partners can easily reach a compromise, as well as exchange advice and requests. Common goals and proactive attitude significantly improve this relationship."
I once was helping a friend's EIE son make and market a Chapman Stick made from carbon fiber. He conceived the project, and we collaborated on the design and prototype manufacturing. In this we were very successful, and our methods produced several models and a patent. However, I was under the impression that he wanted to market this product to make money, which requires finalizing the product and relentlessly marketing it, and he seemed to want to explore endless design variations and go to shows around the country to show people prototypes. As well as we worked together to produce functioning models (and we worked together very well), I simply could not understand his approach to bringing the product to market. (He never did produce a product. The development money ran out first, which happens if you don't focus, and often happens even if you do.)
In some ways, I think the EIE-LIE relationship mirrors my impression of the LIE-ESI vs LIE-LSI relationship. With LSI's, who share half the functions of my dual, I feel like this incredible window opens up into a local world of mutual understanding and support. Unfortunately, the other half of LSI's functions are shared with my Extinguishment partner, and I simply have an incredibly difficult time matching my long range goals, and methods for achieving them, with theirs.