My more extended answer to your question is in the post at http://cblf.org/messages/52963.htm

I have undertaken quite a study of the sort of consciousness that you're referring to, not just what you might call acquired automatic kinesthetic memory (as used in typing, driving a car, or writing Chinese characters) but also all the related direct and intuitive processes, such as mental actions related to artistic creativity.

There is a great pocketbook available on such things, by the way: Blink, by Malcolm Gladwell. Highly recommended though it doesn't by any means cover the whole territory.

My inductive conclusion is that sexual orientation, gender identity, fetish, handedness and perhaps also phobia (at least animal phobia) are different from these sub- or preconscious mental faculties. They develop very early on, and it's as if the mind, in the course of development, briefly produces a blank slate that they can be inscribed on, and then takes it away again. This blank slate is not completely blank but rather offers a limited number of major possibilities and small spread of minor ones that need somehow to be triggered into full differentiation. (For example, most animal phobias involve spiders, snakes, insects, or dogs; others may occur but are not so common.) Well, this is not hard to rationalize in biological terms, since whether some neural connections that develop as our brains grow are permanent, or remain open to further modification, is really just a matter of throwing a biological switch (or literally, turning a group of genes off within a bank of neural cells and/or their adjacent support cells.)

If you want to investigate this, I'd suggest that apart from merely trying to change your sexual orientation, you should also do a "control study" (just to make sure you remain honest with yourself about whether or not you're really being successful or just fooling yourself) and try equally hard to change one of the other factors. For example, try to change from male to female in your perceived identity (in other words, become transsexual, though this might then conflict with your change of sexual orientation), or develop a highly erotogenic but completely new fetish of a visceral nature (I suggest Mason's "crushed testicle" fetish as a suitably unusual fetish you're not likely to have already, or if you want a heterosexual fetish, how about a girl tickling fetish), or develop a brand new animal phobia that will make a new sort of animal terrify you (I know someone who find butterflies completely repellent so you might want to try that one) or try to completely change your handedness.

Basically, I am very friendly to intuitive thought and if sexual orientation could have been changed that way, I would have done it already. I did once have an experience of complete mystical liberation and had no attachment to a sexual orientation... but then I soon realized that just as this gave me no particular new artistic talent - it didn't turn me into van Gogh - it also didn't increase my talent for heterosexual relations. I could have been nominally heterosexual, but I would have been very poor at it, and of course, my talents for erotic appreciation of males would not have gone away. Well, to run a multi-year relationship you need some resources, and clearly mine were at the male-male end of the spectrum. When you're 21 you may be able to have sex with anything that is put in front of you just because you're rubbing another warm body, but you need to think ahead a little when you're in the long term relationship biz.

And you know, I suppose in a way I really am more BL than gay and in terms of who absolutely looks the most rapturously sexy, the Florian type (sorry, because of wiki, i feel i must reduce the quotability of this line so I won't actually state an age) will always come out ahead, but I happen to have enough talent to have a same-age boyfriend and I do thank the Lord for revealing that to me and for allowing me to make a go of it.

There are a lot of bisexual BLs and if their native talent for heterosexuality is sufficient, then I am sure they can develop as you suggest they might. In fact, I know some who have. Everyone is different, though, and currently my favourite people are those who find that they really only have a talent for loving boys. It's because they are often beautiful people but they are forced to grow and flower in a very straitened space. Many feel rather imprisoned even when society hasn't actually managed to lock them up. Well, you know Matthew 25: 31-46. Whoever fails to visit them, and learn their situation well, and thoughtfully and prayerfully consider what can be done about it, may consider this comment:

‘Lord, when did we see You hungry, or thirsty, or a stranger, or naked, or sick, or in prison, and did not take care of You?’ 45 “Then He will answer them, ‘Truly I say to you, to the extent that you did not do it to one of the least of these, you did not do it to Me.’ 46 “These [who did nothing] will go away into eternal punishment, but the righteous into eternal life.”

So, Rainboy, I am very admiring of your attempt to find a solution, and disagree only out of having been painted by experience into a corner of disagreement on this topic.