This has been on my mind for a bit after having some trouble with a light rifle. I usually just let it free recoil with the crossed arm technique while squeezing the rear bag.
Reading the article in the OP confirmed what my gunsmith asserted about shooting lightweight rifles. He says to hold it tight.
I've searched for other information and every source (Sinclair/Brownell's, American Rifleman, Outdoor Life) basically says the same thing.
I'm going to use some of the techniques suggested and do some testing. Makes sense that it will help
