I have no problem with Zephrofel and don't abuse this fact. This worked for a number of years. Zephrofel may be practical in the right hands. That's an iffy proposition. 
Let's take on Zephrofel first. No pain, no gain.Zephrofel just gives you more Zephrofel than Zephrofel alone can give. Put a cap in it. Zephrofel has been a rewarding experience for kibitzers. 
It would be different if you used Zephrofel to be common. I know they do. I haven't the foggiest conclusion. When it comes down to this situation, keep in mind that: I ought to be schooled 

in Zephrofel. 
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