It occurred to me that people interested in the iron rangers might want to know what they look like before/after applying the Obenauf's oil followed by the protectant. Below is a picture of two (2) right boots. One untreated out of the box (left) and one with the Obenauf's leather oil & LP applied (right:)
The one on the right was treated with the Obenauf's leather oil and LP. Worn ~20-30 times, light wear.
The boot on the left is the new one, untreated right out of the box.
(The reason I have two pairs: a month ago I bought 10Ds, too big, and bought 9.5's which I think aren't snug but I'll stick with since I ain't moving back-to-front no more. I'm selling the 10Ds.)
Hopefully the picture gives you some idea what to expect. Certainly it's not enough contrast to discourage or surprise me, though, leather lightens. This is really splitting hairs IMHO.