Hi Oddjob, thanks for your advice mate. The thing with the BuiltHamber bars is they're formulated so they only require WATER as the lubricant, so no need for SOAPY water...Have used them for years and never once had an issue. You'd have to go pretty hard with this stuff to get anywhere near 'burning' the paint with a clay bar and cold water. I also generally use a PTG to check levels before / during / after to assess how much material is being removed at each stage.
Oh and I think you'll find the professionals generally don't use dual action machines as they are much more skilled than us amateurs with da machines.
