Okay, I've been enjoying reading this thread through and through. And it's once again gotten me all excited about the Opinel brand.
I own a couple of Opinels, including a No. 8 Carbon, which I modded some years ago, thanks to the inspiration I've received on this forum. But I decided that I'd like to modify a No. 6 Carbon, as I think that I'd feel more comfortable carrying this as an EDC. So I bought (2) No. 6's for $12 bucks each, and started to disassemble the first.
Now, I know from my previous experience that the pivot pin, even when driven out the (obviously) correct way, hangs up when passing through the blade. So, I filed the non-head end flush to the metal ring and proceeded to drive it out with a punch. It did, in fact, hang up at the hole through the blade. I hammered harder and got it through only after breaking the wood underneath the metal ring.
As I said, I bought (2) knives, so I got out the second and this time, after filing the non-head end of the pivot pin flat, I took a drill bit slightly narrower than the pin and actually drilled out the center of the pivot pin, about 1/8" deep. I was then able to easily drive the pin out of the handle with no damage.
Anyway, working with two knives at the same time, I was able to take a photograph showing the before and after of my work on the handle and the blade. I wanted to post this photo for the benefit of anyone else just starting out with a similar endeavor.
I sanded the handle to a more comfortable profile, widening and deepening the cutout to allow my fingers to grasp the closed blade. I then lightly sanded the entire handle so that stain could penetrate the wood. I used Fiebing's Dark Brown Oil Stain. When it dried, I used Watco's Red Mahogany Penetrating Finish. When it dried, I used a Wipe-On Polyurethane Finish. And when it dried, I used a coat of Paste Wax, applied with 4-0 Steel Wool.
I ground down the clip point of the blade to make it slightly drop pointed, softened the square back edge of the blade, lightly sanded and then cleaned the entire blade before Bluing it with Brownells Oxpho-Blue solution.
I haven't reassembled it yet, but here is the photo showing the original (now broken) handle and blade contrasted to the modified components.
Thank-you to everyone here for posting your knives................... Frank