I am staining an unfinished parawood table with ebony minwax stain and am having problems getting the results I want. I sanded the table with 120 and then 150 grit sandpaper and applied two coats of stain 24 hr apart. The table did not stain as darkly and evenly as I would like. The second coat did not increase the darkness of the stain much so I don't think another coat will help. Is there anything I can do to improve the stain before applying the polyurethane finish?