I've never felt a fake one, so I can't confirm that. But that bolted on look is just not attractive. If I can tell it's a fake boob, it just isn't attractive. I'm sure there are some tastefully done boobs that look great though.
I think I went through a similar change. When I was young I definitely like the big tits and the fake tits. Now I kind of find fake tits gross. I prefer any size natural boob over a fake one any time.
Would limiting the charge to 80% help? I think a lot of laptops have that ability.