Hornsby,
I don't see any conflict with using EFT as long as you wait a half hour or so before switching to another energy system or after using another energy system. The same goes for yoga, Reiki etc. Master Lin himself at the last International Conference acknowledged that there were many ways to get well/healed - he said this after someone had given a testimonial about her healing (she had used EFT as well as SFQ).
Oneness1