You don't have to talk me into them since I own an 8 and a 9

It makes sense what you said about wood work and I like the 9 or 3 o'clock adjustment, so I'm open to a 10. I'm not sure I fully understand how to file that, but I'll find a video on Youtube and lean since that is my biggest concern.
I've been looking at the Sodbuster as well and the smaller yellow Schrade Imperial seems to have as good if not better reviews on two knife sites than the Case 13007 Sodbuster. There are a few Sodbuster models, so maybe I'm looking at the wrong one.
Also, what is the advantage of the Sodbuster over the Stockman?
Fuori,
Regarding the Opinel lock ring.... Open the knife and lock the blade in place, turning the lock ring counter clockwise so that the fully flat portion of the bottom the ring covers the blade well, and not the section that has the cut out for locking the blade closed. The slot in the lock ring should be the same side as the Opinel stamp.
Now, take a felt tipped marker and mark the lock ring on the upper edge where it meets the blade. You will notice that the top portion of the lock ring is ramped. Now mark the top of the lock ring 3 mm or so to the left of the first mark (away from the slot in the lock ring). This will be "higher" on the ramp of the lock ring.
Take the lock ring off. I put the open knife in a padded vice and use needle nose pliers. Lots of videos on You Tube of this. Finally, file the top of the lock ring with a course file between the 2 marks. Essentially, you are lowering the "ramp" along the top, which will allow the ring to spin around more in the lock position. I usually get mine so the slot spins to the 4 or 3 o'clock position.
Regarding the (large) Sodbuster compared to the (large) Stockman pattern... first.... both are slip joints so you won't be able to use the blade to strike a fire steel with the blade open, if that matters to you.
The most obvious difference between the two though is that the Stockman has more blades. I find the Stockman to be a nice whittling knife since it gives smaller blades for fine wood working. But for heavy wood working, I prefer the Sodbuster, since I find multiblade knives less comfortable in my hand.
Another difference is the main blades. Stockmans have a narrow clip point, which is OK for cleaning small fish but I find less useful for general food prep. The Sodbuster's blade (liek the Opinel's) has more belly and can spread peanut butter better (this matters to me, actually).
Finally, neither the Sodbuster nor the Stockman is convex ground. I find the Opinel handle to be much more hand filling and the blade better suited to making shavings and feather sticks.
My pref: Opinel > Sodbuster > Stockman.