Hi @lemouth, thank you for your great comments, as usual :-)

I actually stumbled on the term QFD recently, and I liked it. I chose it on purpose due to the clear categoriation it provides (QED, QFD and QCD). I know from a previous discussion we had, that the recent theoretical progress has made this delimitation void, and that the term electroweak is more representative of our current understanding and models. However, I stick to the old description for now, for clarity purposes, until I find a way to express the new description with the same simplicity (Still, I will add a few words to the post).

we accelerate protons to very high energies
I chose to just mention 'experiments' that led to verify asymptotic freedom without going into the details (If my memory is correct, I think it was proven by studying the scattering of an electron beam). The highest the energies involved, the more loose the quarks appeared... this is consistent with what you are describing.

I also use Pion with my IB students, never Pi-Meson, haha! But here I chose this wording as it reminds the reader that is just discovering this topic via Steemit, that a pion is a Meson without needing him or her to go to the appendix or consult elder posts. yet, it is a good idea to add the name pion in brackets.