Chris, I am certaintly glad you haven't had any major accidents on the bike. I've been riding for for 40+ years and have owned 14 motorcycles. The Stayin Safe Advanced Rider Training course is more than safe riding practices. You actually learn where to be on the road in every situation, cornering, braking, slow speed maneuvering, looking ahead, insuring you can stop within your line of site, etc.
Of the six rider, the youngest rider in the course was 54, the oldest 78. All have been riding for many years, and each quoted how much they learned. The courses are held on great twisty roads away from crowed highways. The constant communication directly into your helmet from the instructors is a class room on the road. One instructor for every three riders. You both follow and lead the instructors, so you get constant feedback while riding.
I went down a year ago on my Concours C14, I truly believe I would not have crashed if I had used what I've learned at Stayin Safe. It should be noted that Grodsky died because he hit a deer. I do agree it is a bad idea to ride after dark. The course is not only training, the instructors are with you all day, both days even at meals. So, the class continues into the evening with questions and opinions talked about during, before, and after dinner. If you are concerned about cost, it includes some great meals, one night lodging, and even a beverage at the end of day one.
So, I hope all would look at the website and if you have any concerns, questions, you can call and talk to Eric Trow personally. He and his instructors are very personable and the most enthusiastic riders I have met. You can only learn so much in a parking lot. BB