I recently purchased a 12 year old log home. I do not know the history of the original log application care, nor the followup maintenance care. I would like to stain the interior logs a darker color this winter. Overall the interior logs look good, but there are a few logs that have cracks in them. I would like to do what is necessary to correct the cracks, as well as whatever is necessary to do the job right prior to staining the logs. With that in mind, what steps should I be doing to the inte