We built our retirement dream log home two years ago and are becoming frustrated with the exterior maintenance. We used Defy stain which has not only largely failed, but when we powerwash, apply Defy Wood Brightener, rinse, and reapply the Defy stain, we are getting many darker brown areas along the top halves of the logs. Please don’t tell me to cob blast a two-year-old home. We’d welcome any advice that would prevent the maintenance from being a nightmare! Thanks.