I guess I would be screwed if I bought a couple of out of hydro tanks while down in North Florida and I was bringing them home to hydro them. Also, if I have a tank that I just got hydroed from a fire extinguisher place that does not do VIPs, I would still fill it from my personal whip but would get a VIP done before taking it to a shop to have it filled. Or better yet, take it to my local shop to get a VIP and they give me a fill for free. But I got a 13cf that I will be getting back from hydro next week and I will be using it for playing around the pool and emergency tire inflation, it will not be getting a VIP for a while.