I have a bit of confusion, please help me

I try to serch the answer in your guide but I still have some confusion.
Please answer me to the questions below.

1 Is possible to forging with the wallet of the free 1000 MHC (called active forging wallet) and one my wallet with my MHC in the same PC and IP at the same time?

2 Is there any different in the reward of active forgin between the use of a regular wallet (I mean a wallet with own MHC) and the use of a free wallet (I mean a wallet with the free 1000 MHC)

3 The minimun for the active forging is 1000 MHC if I forgin with more than 1000 MHC what appening?

Have nice days