What is it like being an F male in your culture? Does the dominance of thinking preference in men affect your interactions with other males?
Do you feel very different/challenged by your preference?
Don't know. Is it difficult just because I am a feeler, or because I am who I am as whole?
Assuming it is because I am a feeler, yes, it is difficult. I cannot relate to the thinking of many men. Don't find a better example, but you will maybe understand: you know, we all know this stereotypical image of men thinking stereotypiycally about women not being rational, like they say "no" and mean actually "yes" and the other way around, and you cannot understand them as a man. As we know MBTI, we would probably say that's not a women thing, but a feeler thing (or maybe even more specifically Fi as first or second function). Now statistically there is more female feeler than thinker and more male thinker than feeler, so the stereotypes went like that.
In such things I can relate more to the women position, and therefore I actually get along with more women than men now. Men which I get along with are to most parts feelers, and only a few thinkers.
However, because you don't behave like the stereotypical man, you get treated different than them too by other people. I suspect that it is one reason people don't seem to want to hang around with me all the time, although it is not like they don't like me.
Just to get it straight: I for one know for sure I am a man and think I am more man than many other men nowadays, no matter whether thinkers or feelers. I just think that some stereotypes of mans are wrong or interpreted wrong. It is all about how you define things. Like when a man is associated by being strong, protecting and what not all, it depends how you think you define it. What does it mean to be strong? Being physically strong? Using your ellbows against concurrence and win? Or is it living up to your own values and principles no matter what comes? And such stuff.
What defines the F male compared to the T male?
Well, basically how you define the functions themselves actually, you can find the difference in thinking process.
Another stereotype thrown in: F male are the ones who are seen only as good friends by women and totally meet the ideal females seem to have thought out of a men (understanding, supportive, kind and gentle etc.), but will never get into a relationship with, but rather with the next best "idiot" which does totally not look like their ideal.
I don't know if that is really true. You can suspect a tendency for it, but I don't know.
How are Fi males and Fe males different/similar?
I suspect Fe males being nearer to the typical T males (and the stereotypcial males in society) than Fi males, because Fi as an introverted function seems to be hard to understand to those who don't use Fi as first or second function, which applies to most males. And Fi seems to be good part of women stereotype, not men stereotype.
They are similar in that they both are only third or fourth function T's, general speaken
Did you have to peel back a culturally imposed layer of Tness to realise you are an F? Do you often test as a T?
I am not sure. I had to peel back my outward appearing from my inner perspective to realize I am an F and not an T. My outward appearing difference was created by hardening to outward influences and being less open to others, because being open as an INFP made it hard for me especially at school. Getting a bit more into MBTI and understanding functions a bit better, I realized I in fact am a Feeler who just didn't show this outwardly that much anymore, since it makes you very vulnerable.
So, you could argue society shaped my behavior in a way, and I had to look under it first before realizing my true self. And it literally felt to me like I finally understand myself much better than before when I tested as INFP, and made me see things a bit more clearer I believe.
I did MBTI test in fact already some 1-2 years ago before really getting into it. I tested back then as INTJ and INTP. I didn't know anything about real meaning of functions though, and I answered questions basing more on my outward "mask" (which doesn't mean I behaved not like me, but I didn't show all my inner feels either) than my real self.
You big love-muffin you. 
