Hi Yohann,
I've never used (or tested) Zero in stock and Minimum counting codes (and I actually couldn't get Period to work properly yesterday on R3 CU9 when I was writing that!).
I did briefly wonder about Zero in stock - will the 'On hand' count really suggest to count something that is not in stock? (It is, I'm told, the easiest time to count an item!)
And for 'Minimum', it isn't clear to me where the Minimum quantity is actually specified.
I look forward to you blogging about your findings, but then I remembered I don't speak (or read) French! Hopefully Google translate will make a good job of it :-)