I see lots of unbranded stuff out there that looks like tools I have seen/used in the past, the only bad thing is the quality. Does anyone have a favorite that is available today? Do you feel a particular unit is more accurate? Emgo, Motion pro, Slow boat... Do you see the advantage of a dial over a manometer or vise versa? I have a box of chemistry set glass tubing and thought about fabbing one up like a manometer but have not as of yet as time and tubing and valves all add up. That and I dont really want the bike to take a drink from it. Cant believe bikes like Cool Aid much.