I am looking to buy some Diamond micron spray still not sure what mic I would need for ZDP, but I see sprays and slurrys for sale online are they the same thing? or is the slurry something different from the spray. If anyone can help me decide what micron types I need to buy for ZDP that would help me out so much. I just don't want to waste $20 on something that won't do me any good. I was also going to buy a Balsa Wood Strop and I found one I want but it comes with chromium oxide already on it. would that affect me using the diamond spray on that strop?? please help if you might know any of these questions. Thanks