Hi again,
and thank you for the fast response!
I am still not quite sure (I may be a chicken...), because the same level of skills is shown when selecting the other companion.
Value for Armstec is 102 (not 145, I remembered wrong...) / 400 when summoning each one of them, and I supect if I remove for the additonal companion it will be 0 for both....
But if you can assure me you have done the same when having more than 1 companion, I will give it a try