Could we define "hold"?
I assume we're talking prone or bench?
I need to work on my hold and try to find things that work but cant find any rhyme or rhythm.
Currently I mostly shoot prone, left arm (right handed) squeezing rear bag, bi-pod, and right arm/hand using light to moderate grip pressure. My butstock is lengthened so when I look through my scope I'm pushing my headlight slightly forward which tightens the stock and shoulder mount slightly.
I'm 6'4" so my stock is pretty damn long. I went and added weight to it and rather then allowing for the adjuster I simply left it at full length. Not sure if this is wrong or not, but I find good, solid info on the "right way" hard to find.
I've also tried keeping the bi-pod push loaded, neutral, and pulled loaded. Can't find one or the other that works much better. I keep the legs on a level board to help create a smooth plane to move back on once fired.