Does anyone that has used both an bunch actually prefer the hog saddle to just shooting off a bag on the tripod, or a bag on a Tac table?
Curious, as I haven’t used a hog saddle and have been mostly shooting off a bag rather than anvil/arca for the last year.
If using a bag on the tripod or a Tac table, why even use a tripod head?
JMTCW, so take it for what it's worth...
The HOG saddle is really outdated. It's better than nothing, but I have to say, I have one, and it's been under my bench for at least the last 8-10 years. It's just too clunky compared to everything else these days. Remember, it came out before most people were even trying to use a "cheater" of some sort. Early versions being a bunny eared bag attached to a short piece of wood/metal, with a 1/4-20 hole for the cheap Walmart tripod mounts. LR tactical matches really pushed the community to innovate, and so the HOG saddle came into being. It was (at the time) a great idea, but as tripods got better, more innovation happened, and you ended up with the RRS tripods, the RRS ARCA specification/standard, and a host of other options (like the anvil-30 inverted ballhead, and tac tables of various flavors), the HOG saddle just became outdated.
If you're shooting off a bag, you really don't need a ball head (just place the bag over the apex of the tripod and shoot). That being said, most like the flexibility of having both options. One for direct attach scenarios/engagements, and the other for non-attached engagements (again, usually when dealing with multiple, fleeting targets).
As to why to use a table? It's just a bit more stable for leaving a rifle independently rested on the tripod (when not on glass), as well as most support attaching things to them (like a Kestrel, stopwatch, Xero, etc.).
As to the Anvil-30? It's main benefit is direct attach engagements, where there is a small field of view of the target (think overwatch) for a long period of time, and the desire for a lower, more stable position on the tripod itself. Also, if there is a need to pan to, and then focus on, a secondary TRP (think overwatch on an egress point, with a secondary egress point that may need to be switched to on the fly), the anvil-30 pans very smoothly. The Anvil also allows attachment of either ARCA or Picatinny rails. Since it's inverted, it's closer to the apex of the tripod legs, so is inherently more stable than an older style ballhead (where the ball is in the base, not the head).
Ultimately, your engagement and shooting style should drive your selection of tripod, whether it's attached or not attached, and the degree of stability (practically) needed. There is no absolute right (or wrong) answer. It depends on the shooter, their familiarity (training) with their gear, and the engagement scenario.
Again, JMTCW...