I recently picked up a portable ARB pump to split time between the SMB & the Jeep so I am selling my Viair 400P pump. It hasn't been used much and did a decent job with my 33" tires. I typically drop them down to 30 psi & then pump them up to 70 once back on pavement. I never had an issue with having to wait for the compressor to cycle. I'd guess it takes around 3 minutes per tire with this. The ARB will do it much faster but at a much higher cost...
I used a Flexzilla hose with the Viair instead of the hose provided. I found it easier to use. I am moving that over to the ARB kit.
I also have an ARB deflator that I will include. I bought a set of Stauns deflators and I prefer to use those. This has seen very little use.
The Viair is this model:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
$100 for the Viair plus the ARB deflator. The compressor has all accessories that came with it including spare filters. I'd prefer not to ship but can meet up around San Diego.
Pics can be seen here:
https://roberttilley.smugmug.com/Aluminess/