This doesn't bother me too much. If I understand correctly, if you want to use this feature on other brands of dolls, and cheaper sex dolls don't have screws or other plastic parts on the bottom of their feet, I wouldn't mind too much either. However, in terms of realism, temperature issues seem to occur frequently.

I'm guessing the cheap sex doll you bought was the 100cm one from AliExpress. I had the same problem today. My doll was 165cm, and because it wasn't torn, I was able to readjust it.