I m Belgian, and my english is not so perfect. I m a bite lost with this all comments about M3 update. I bought Michael 3.0 Base (M1/M2 Upgrade), Can I use Sr1 update with this product or must I have only Michael 3 Base? Is there a realy diffrence between M3 base and M3 (M1/M2 Upgrade)??? THX for your clear response. Roland