Getting that dark brown Mahogany.

[Kent A Bathurst]

............and then A wiping stain of gilsonite ......... This will color the pores and unlike pigments gilsonite is very transparent.

^^^^^ This.

I also use a diluted dark walnut wiping stain to get the same thing done. With the shellac sealer coat, the MS reduced stain has no effect on the dye color - you are just adding a pore filler at that point.