Post Soda Blasting surface prep

I know there have been a few post regarding soda blasting removing paint but not rust that I am fully aware of but a few guys mentioned that there are issues with the residue left behind effecting paint adhesion. I normally would send it to my power coating guy who also does media blasting. He's done several bodies for me and they have come out perfect, but right now due to family issues he is unable to blast my body.
My other alternatives are Dustless blasting IMO is out of his mind charging $1300 to do a convertible body with no door and no fenders, my other option is a local soda blasting guy who specializes in marine work but has done cars and parts. He did a great job for me on a scatter shield and some other parts for my gasser.
So my questions is for anyone who has had soda blasting done what post blasting surface prep is required.
Thanks again for all your input