Is the best tactic, for those of us who only have 1-2 A3 miners, to mine up until mid March and then sell the A3 locally before the second batch comes out? Take your profits and then wait for bitmain to release another miner for a new coin and go with that. basically just buy the first batch, sell, wait, buy new miner of a different coin and continue like this for the next few years. To me it seems like the quickest and easiest way to make good profits