I also work out with weights and read with interest the article indicated by Ido, which is something I always thought imprecise about the myth of "functional" and "fluffish" muscles.
Anyway, I still have one doubt that persists and a hesitation concerning working the legs too much, I don't know if that's unfounded as well. I have better genetics for the legs and they grow easier than my arms or torso in general and I don't like, for example, to squat heavy in order not to overdevelop them. Since my main immediate objective is to progress at planche, I'm afraid to develop the legs and worsen the balance towards them. I think I read some people saying that an upper body more developed has more advantage for the planche and of course I don't want to be like a strong chicken with a huge breast and stick legs, but I wonder if some degree of disproportion towards the torso is really more advantageous and until what extent leg development(hypertrophy) could be taken without damaging the planche progression. Or maybe if someone is really strong and has the technique and proprioception for the movement already established that's not much important?