Why do LL results vary?

[Realism]

What do you think about gettin LL done in turkey (15-20k€) to go from 1,79 to 1,85? I’m muscular. In GER most guys are 1,85+

Honestly something you'll have to find out yourself.
Most would probably call you a retard as 179 isn't short, but again, German people are tall.
Having muscular legs are a disadvantage going into this as well.