Another suggestion is that if you are using Z-Enemy miner as the preferred miner for any of the algorithms it supports, you may want to follow the developer's recommendations for intensity settings found here: https://bitcointalk.org/index.php?topic=3378390.0  Some of the miner's default settings are not the recommended values.  If you change the intensity settings
for a preferred miner, you may want to consider locking that miner if you are using the Change Preferred Miners Automatically advanced configuration setting.

In regards to BlockMasters, you may want to read this post https://bitcointalk.org/index.php?topic=4101412.0 to see what others have been saying about their price estimates. I don't agree with everything being said in that thread, but I have found that the actual prices are closer to my expectations than some of the current estimates.