I agree that it is kind of strange and uncomfortable. Especially
At the same time though, I think everyone is right. That strangeness and uncomfortableness can actually become a tool for memorizing. I almost never forget a sei reading for a kanji with a sei reading because of this so…I guess my point is, it works, and it works well. If I have to be a little uncomfortable and think something is a bit strange while imagining it to memorize kanji well, that does not seem like too big a price to me.