I use the Pinnacle liquid and waterless as a "system". I think they both compliment each other very well. That being said, I'll never "waterless wash" or "rinseless wash" my cars without pressure rinsing / foaming first.
That's just me. It's too easy to just remove larger particles of dirt with pressurized water. I can't see wiping off dirt that can be rinsed off. I know its not as quick or convenient, but I will still do it all year round.
Worse case scenario, I'll bring towels and waterless wash to the pay-n-spray and pressure wash it there. Then I'll do a waterless wash. The pressure does a good job of removing dirt, as the towels stay fairly clean. It's also the best way to clean wheel wells.
I always clean wheels conventionally. I have to have spotless wheels. It's still a hobby - even though its freezing cold. The alternative is sitting inside fighting off boredom.
