No I'm not expecting anything. I really don't think it's that big a deal or a big advantage though. I mean, all you can do is set your tactics to a 2-3 zone, which you probably would have done anyway, and perhaps switch your best inside defender onto him, in which case McNeill and Catapang will run rampant. The tactics aren't so specific that you can instruct your defender on exactly what Faina's going to do, so you can't make an individual defender more able to guard him. All it means is that now you know exactly what to expect from my players, but GE won't reflect any such knowledge in your players no matter what you do.
Also, in regard to Faina's IS, I've never trained inside shot, because then I would either have to play him and McNeill at C or two-position train, which is inefficient. I train forwards because you get so many pops in training 1on1 for forwards (plus my team started with McNeill, who had at least mediocre in everything, and average or respectable in most). McNeill and Faina at 21 and 20 respectively have popped several times in JS, HA, DR, IS, and each of them has also got a random pop from the new cross-training. Although I'm not sure why Faina's IS pops more than his DR. I think it has something to do with the fact that HA and DR alternate pops, because of their similarity, but IDK.
By the way, congrats on 2nd place! That's 1 month free supporter, right?