noob here...just ordered 2 Antminer S9's and have been looking at many pools to decide to start in... they are the 14.5 TH/s batch that just shipped....Will the 2 S9's in this pool be able to get me around 0.4 bitcoin per month?
Well the amount you get on any pool will drop every 2 week, so you wouldn't expect it to stay the same even for one month.
Here, you expect to average around
106% *
99% *
99.1% PPS = ~104% PPS
106% is the average txn fees added for the last 100 blocks
99% is subtracting 1% for orphans
99.1% is subtracting 0.9% for the pool fee
So any calculator that can tell you what the current 100% PPS is, you'd expect to average about 4% more.
Which is more than any of the larger pools.
However, the PPLNS variance here is quite noticeable, so you won't expect the same amount even every week, since it goes up and down around that 104% mark.
Pool luck decides what you actually get.
100% PPS per day for 29THs is currently ~0.016544BTC per day