I’m preparing to begin restoration on a 70 z28. There is some flash and slightly heavier rust on the underside, mostly near the rear axle and back floor panels. No perforations but still needs to be stopped before more damage. Now, to my question. I was thinking it might be most advantageous to just drive the car somewhere and have the underside soda blasted. I understand that the car is rinsed with a rust inhibited water to prevent flash rust And remove particles so that I can apply a primer afterwards then began a body on restoration. I’m planning a daily driver so not doing a rotisserie budget restoration (at this time). has anyone else ever done this? Any concerns or issues? Just trying to avoid hours on my back underneath with a sander and wire brush and don’t want to deal with the mess of sandblasting.