Hi; I have a Small Sealy Blast Cabinet with a built in suction gun and a Clarke CPSB100B 32L Blast Pot. They are both second hand a came with a few spare nozzles, the problem is I have no idea what size nozzle to use for what type of media / blasting? Does the media you use depict the nozzle, or dod you change the nozzle depending on desired use (detail or no so detailed)? I am hoping to get some Soda to do some Soda Blasting (Engine Casing Parts and Carbs) and I also have a bag of RestoFine G500, which according to this is a glass abrasive suitable for steel and aluminium? So the plan is to use Soda for the aluminium restoration and the RestoFine G500 for cleaning up the steel parts (timing chain cases, engine brackets etc) I was going to get some EcoStrip Soda (25Kg) but company I found don't ship that small amount, I then found some Armex FlowXL here. What size nozzles should I be using for the FlowXL Soda and the RestoFine G500?