all i can say is PROTECH PROTECH PROTECH.we dove with them for 5 days and it was great.we strayed for one day to try ecologic and got picked up at our dock and took a boat ride to ecologics dock while we sat and sighned paperwork,figured out gear,told wich boat to go on,so on and so on.
a two tank dive with ecologic was just taxing.im just trying to help the little guy when i feel that its deserved.PROTECH is the way to go