I am not an expert, I suggest you steam all of the stock equally, this should remove any residual oils in the wood. Make sure the wood has dried, complete [very slowly] before staining. Different woods take stain in different ways, I am still learning, I use solvent based stains, applied with cotton cloth, [ & rubber gloves!] It dries fast & I can apply more if I want a darker finish, hope this helps regards Al.