I lost almost 10% BF in 28 weeks with nothing but a rigorous diet, exceptional training, and ECY. Going from ~19% to ~9%. Obviously going from ~15% to ~5% would be more difficult. I've never found anything better for cutting than ECY though. With all this new Forskolin info I imagine it would've happened better if I had added that in as well.
He could run a dry PH with some Dexaprine XR (not sure how well ECY goes with a PH stack if blood pressure issues are prevalent). You guys know more about these substances than myself, but if that won't be an issue and you can run Ephedrine on cycle it would help.