Josh, it's late and I'm buried next few days, but after looking at that article you posted, that's like some bs you'd see in southern Living.
Here are 2 older posts. Read thru them completely. I put some good info in the first one if you read down. Copy and save it.
Here's another good link where Tireshark did some good homework that was just posted less than a month ago. What everyone should do.
Also go here and read - this is Rick Petry's site and all he does is wood restoration and he's been kind enough to help me out a few times. He's an old time member here. http://www.windsorwoodcare.com/index.html
Also, the little search button to the left of your name is a wealth of info.
Read thru all of the above and we'll talk Sunday nite. Just remember, don't be lazy with wood and based on your background doubt you are. Most guys just try to take the easiest way out but I'm a firm believer that you should never use stronger or more of chemicals and/or pressure than what's necessary. You got to learn your chemicals. Study that PH chart