You are probably on the cutting edge giving your dog CES. I don't know of anyone that has tried it on pets. I would use the most comfortable setting. I find #3 the Schuman frequency the most comfortable. Try it on yourself first to make sure it feels good. You may have to wet the area of fur you are placing the probes/electrodes
onto get good results.
On another note I have heard of some folks having good results with Quantum Touch http://www.quantumtouch.com
which I can send to Ruffy remotely if you wish.