Sorry total newb comment, but I finally get it.
I tested with a Root Beer for the kids, better to blow a $10 soda than a $40 beer. But everything went exactly as planned. I will qualify that by saying I read a lot before jumping into something new. The sticky's, particularly Bobby M's, are excellent. Took a bit of time to read all 22 pages but at least 50% was worth it.
If you are on the fence like I was for a long time, pull a Nike and "Just Do It"! Took me shearing off the spigot on the counter with 5 gallons in the bucket to take the plunge. I now have 2.5-3 gallons stout and it is still sticky between the slats of the hardwood flooirng where the other half fell.