What's the difference? Is it just that lexol's an emulsion? I've been using Lexol for a while to condition stuff periodically, and I don't get the same issues with darkening you report with boot oil (LP is another story), so I'm curious why you'd prefer it.
Also, any chance of getting that brown/rust/cordovan comparison pic shot with a proper dslr in 5500k and daylight? I think this thread's finally won me over, and I'm trying to decide between rust and cordovan. The promo shot SF is using for that charity auction is confusing me.