[KCV6]

personally I love the flash copper as it is one of the best "strike coat" systems around for any metal. I have gas axed parts to extremely high temps and it has shown no sign of delaminating from the base material. naturally there is a point where it will, but this is well beyond what most parts would be subjected to.

It is all in the "strike coat" being an alkaline plating process. the other option is to look around for a nickle "strike coat" system. these are low acidity and allow for a coat of nickle to go down on pot metal etc. prior to acid copper.

In short, get the flash copper, it is great. As for the Acid copper.. well it is also worthwhile having, however the flash copper will build quite well. There is nothing stopping you using the flash copper instead of acid copper, however it will probably take a bit longer to build?