So after getting a couple of the top contenders (as a benchmark) from this testing, I decided to do my own testing in a variety of conditions and ways. This will be ongoing testing over the coming months/years. I'm using some sample blades in 1095 steel that were sandblasted and degreased for maximum possible corrosion. The first 4 I'll be comparing are Hornady One Shot, WD40 specialist corrosion inhibitor, coconut oil (said to be the main ingredient in frog lube), and a control. After the oil application I wiped off all the excess with a dry paper towel. There is an interesting difference between the wd40 and one shot which I'll discuss later. Here are the 4 blades with the three lubed up - same order as in Pic above. I will be leaving outdoors and spraying once a day with a saltwater solution (4000 ppm salt content in water). First application has been started at about 2pm today. Updates will be coming soon!