I'm looking for feedback from anyone who's used this product before and would like to know how it worked for them. I took on a project that should have been a simple touch up for a fella and it's turned into a major PITA for me. I am not set up for hot bluing but none of the traditional cold blues are working for me either. BC Super Blue, and Oxpho Blue are not giving me the deep dark finish that I need for this firearm (model 36 S&W).. I placed an order for the Blue Wonder this morning and I'm hoping it lives up to it's hype so I can get this firearm back to it's owner soon. As a side note, all other projects that I've used cold bluing products on have turned out beautifully. Maybe it's the steel?