My experience here, having used both types of torches, standard / turbo, the turbo is definitely hotter and much louder when in operation. Therefore...
A lot of people including myself will build something out of a steel square corner tube rather than a structural rounded corner tube, either because...
There is a reason you see A/C guys silver brazing refrigerant lines with oxy/acetylene. A turbo air/acetylene you would melt the valve before you got...