I've had one for about 3 yrs. I don't drive my car much and would run 110 always. Lately though, I have been using 93 octane pump gas and 70/30 denatured/water mix. It uses jets to regulate the volume sprayed and a hobbs switch for turn on point. Its hard to see the system the way I have it installed. Maybe alittle harder to setup than the SMC (because you have to open the hood to change spray on point and jet size, but once its dialed in, why change it?
Mike