Seems to mirror what I have learned from experience. I also have posted and taught the same. The Piston AR stuff and AK stuff cracks me the hell up.
The only thing that stands out as odd is the carbon issues they say stops the guns up cold. I have read their posts on ARFCOM and I have seen the spent "steel casings". I think the carbon stoppages are ammo or lubricant related. Nothing wrong with Lucas or Slip though.