Thanks for posting up comparison shots - that is useful info. I think the wash you've done srhutch looks a very decent result. I haven't yet worked out quite how to get that nice cling you seem to be getting in your shots with the snowfoam. I DO think the citrus/foam combo would have contributed to less bubbles/cream, more watery effect just because your gut tells you that adding citrus will decrease bubbles. That being said, I'd imagine the citrus pre-wash probably says it is ph neutral etc so not sure where that leaves things...
I think the main difference between what you guys appear to be doing and what I'm doing is the use of a pressure washer. I don't have one. My folks do so when I was seeing them over christmas, I used their washer - having never really used one before, so I didn't really understand how it worked. The water does come out at pressure - granted, that's what you'd want from a pressure washer - but it does come out as a mist really doesn't it? I'm not against pressure washers (secretly I'm trying to find reasons not to buy one for fear of spending more cleaning the car than I spend using it!) and would certainly invest in one if there was a cheapo version which had decent water flow. I'm rambling now... The pressure washer was really useful for doing the wheels and arches IMO but was a lot less useful for rinsing or wetting the body (water flow - it just doesn't rinse like an open hose, which I currently use), although I also think it will work well for blasting foam off the body once it's done its thing. Where would you get a sensible (read: cheap) pressure washer with a hoselock attachment?
So for each wash I am now foaming and using the 2 bucket jobby, having to touch the car with the mitt. Using the snowfoaming product means that the "washing" itself, with the mitt, is actually more like wiping down a worktop with big sweeps as, for the most part, the grime has already been dragged away from the car with the foam and rinse. I think I'd like to have the option of doing as srhutch mentions - maybe touching the car every third wash and just foaming and blasting off the main crud and traffic film in between at high pressure. Which, by the sounds of it, means looking for a pressurised water solution...
Stevo