I recently purchased a Guerrilla Air Assault "FUKU" Series High Pressure Regulator form P8NTBALLSTEVE. He was very knowledgeable about air systems, honest, and has great communication skills. He really went above and beyond on this deal. He also can answer any question on regulators or tanks, this made choosing the right system for me very easy. A+ in my book, and I hope to deal with him in the near future.