I would recommend that if you are going to do some PFLs, that you should "warm" the engine on the way down. What I mean by this is gently apply full power for a second or two every thousand feet. It may take away a bit of the realism but you dont want it TO real ether! I was only shown this during my GFT, and my examiner was quite surprised i hadnt been shown this during my PPL training.
