Sorry Vitamin K & Txchemist, long few days at work.
Ok so to answer your questions, my rules call for no oil. And yeah this stuff is very expensive, but where I work we use this to maintain our fiber optic fusion machines, you spray it and in a few seconds it dries leaving a light haze which we wipe off but it leaves a layer of dry krytox on the surface that lasts for months.
To be honest I hadn't come across the pledge idea until after our derby, so I will be prepping a set of axles using that and see how that works. We have to do some maintenance to our pack track, I will play around with it then and pass along how it worked for me.
For lube I used XLR8 graphite. I have used this stuff for years and I really hadn't paid a lot of attention to all the different kinds that are out there. I picked this one solely based on the needle tip applicator. It really makes it easy to apply lube after the wheels are on with out spilling it all over the place. When I get my order of DD4H graphite, what's in my bottle now will get replaced with his blend. As for krytox oil, I think (and hope to test) the dry spray with the oil may workout really well, seeing as it would be krytox on all surfaces.