would 10 x 2TH/s machines give me the possibility to mine solo Would 10 X 2TH/s machines give me the a heads up on pool mining or go solo mining obviously using different addresses on each machine, or one address prone to redundant work?
Tim S. had a good answer about this earlier today.

Since your overall hash rate is going to be around 20 TH/s, you would be OK doing your own solo mining. But with solo mining, your rewards will be a lot more inconsistent than if you mined in a pool.