Hey there Thib (salut Christian),
I read your post regarding how overhead work will tremendously help with horizontal pressing. However, I'm only doing seated military pressing (I work out at home and the ceilling is too low, fml). I've read a couple articles saying that once you reach certains weights on the seated press, the compression on your spine can become ''dangerous'' and it can compress your disks.
I do plenty of core work so I'm not ''missing out'' on the blance benefits from doing standing vs seated, but I'm more concerned about the health of my spine and I'd like to have your opinion concerning this issue since I put much faith in your opinions.
If it does turn out that seated is harmful, I can find a way to do standing presses.