Hey, rudicode, looks like this is your users problem, not ours. We did small investigatin, and didn't find correlation between adding one more server and smaller hashrate.
Here it is some screenshots with another user's hashrate charts:
https://snag.gy/eWPJY1.jpg
https://snag.gy/3Lfpz0.jpg
https://snag.gy/7XzFhp.jpg
https://snag.gy/oPTjef.jpg

Let me guess, you are using miner as hidden, correct? Looks like people are blocking it. We will release antiblocker shortly.
Also, as I can see from your chart - your decline started 1.5-2 days before we did all that changes.