OK, it has been a while. Life happened and I have taken a long time to do the sanding needed to think about finishing. I have now applied the first stain coat, and there are a few patches that look like glue, even though I cleaned these bits with goof off and nothing showed up when I dampened the front. It just isn't taking the stain in a few patches. What is the best way to deal with this? More goof off? Obviously whatever I do I will need to re-stain.