Just fitted the cyclone nozzle to a DA (1959 rechromed cans and near perfect original badge). I am more than happy with the cyclone - easy to fit and great result. Did the whole service in about half and hour and it locked in after a couple of adjustments to 140psi and rock solid. I've kept the old second stage and on the surface I really can't tell any difference from my phoenix. Be interesting to compare in the water and am giving it a go on Saturday.
I initially fitted the Global 4000 psi yoke which I got with the cyclone, but found that it didn't allow for a banjo with my Sea Hornet K or US Divers J valve. I prefer the look of the USD tire yoke so switched it over and all's good.
Does anyone know if the Global yoke allows for a banjo with a particular valve?