I've only ever used AR stocks or standard hunting style stocks on my rifles.  I've never had one that would allow me to position the butt-pad in three or more axis.  Is there a how to or guide on how best to make this fit? I know how to position the cheek riser no problem. However, I've only ever gotten behind a rifle a shot it.  Being able to adjust the height and tilt of the butt-pad is new.

The chassis I'm looking at allows not only that but also allows the length of pull to be adjusted at the butt stock as well as the grip.  I know to adjust the grip to allow a 90 degree bend at the second knuckle. Is there any general guide on how long to make the stock adjustment or is it simply to allow the shooters head to be on the cheek riser comfortably?

This might help...

That's exactly the sort of thing I was looking for. Thank you!

Are there any other tips not covered in that video anyone else might have?  For example, I would imagine you would want to set your grip to trigger position before you set your LoP with the buttstock adjustment.  Is that accurate?