Sounds really lovely. I've got some fiddle back Sycamore that would make such a stunning stock, there really are some superb woods out there, are there not. I do indeed sometimes use a mix of Tung Oil or thinned Danish Oil etc, I find the viscosity and its application it tends to depend on how open the grain is on any given species.Ever used tung oil and white spirit Olaf?
For the show we sanded some sapilei,beech,tulip,maple,walnut and cherry. Half of the side that was showing was given one coat of tung oil(neat). We did that just to show how the grain comes up. The result was almost instant. If we would have bad a constant temp in the hall it would have been even better. We also coated some unsanded zebrano and ropala lace wood. Just so people could see the potential of how the grain comes alive. It is fair to sa my order to the supplier has greatly increased for April. I just hope he gets the zebrano in 3" quarter sawn. We didn't even have to sell the zebrano to be honest, we just let people look at it. I would like to see the conditions were the ropala lacewood or zebrano would warp!
A really superb oil is one called Organoil, I believe that its made by a load of hippys who have happily turned into capitalists out near Byron bay in Australia. Its a burnishing oil that lots of wood turners use to friction polish food safe items, things like plates and platters etc. Its as its name suggests; organic oil, its made from the oils taken buy crushing and squeezing lemon and orange pips. I personally wouldn't put it anywhere near a gun stock though because it makes wood smell like a fruit bowl. Its brilliant on fruit bowls though !
If you want some then ping me a pm and I'll send you the details, its good stuff to have as a general purpose household wood oil. It leaves a satin finish.