You guys didn't know about the height slider by Delphy? I don't think he officially published them. But here it is
http://www.modthesims.info/showthread.php?t=378014
This is what you guys are talking about, right?
It works in my game. Sims retain their height through saves. But the height somewhat was not too noticeable even at max. It is noticeable when 2 sims interact with each other, like kissing. Despite the work Delphy put in, I still think it looks very unnatural, that I had to use different sliders to compensate. Especially the shoulders, I have to use shoulder height slider (by Johna) to lower shoulders from tall sims just to make them look normal. There are a few small clipping issues when relaxing in bed. And when kissing, it is like the tall sim is kissing the regular sim's forehead. It looks very cute, still, but not exactly what you would call "lip locking" kisses.
I work for a living, but I don't necessarily live for a working.