I use the Fiebings oil dye on my work. My pieces are much smaller than the Hill style quivers, but I use about the same method that Roconman uses. I dampen my work before I dye, and I use the wool daubers to apply. I put two coats of dye on, one after the other. But like other have said, the leather has a mind of it's own sometimes, as some areas are more dense then others, and will absorb the dye differently. Once I'm done I apply Skidmores leather Cream, or my homemade bee's wax blend, and then gently heat with the wife's blow dryer and handrub until the leather sucks up all the wax.
Sometimes I want the leather to be blotched looking as I think it gives it some character, so I don't work a whole lot at getting the finish perfect.
hnh