The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details:
https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is $300 $250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
Most of the disks I've seen and handled have been on liner locks or frame locks. Neither of these types have much tension holding the blade closed. It doesn't take much to get them to open. Some even have bearings to facilitate a smoother, faster opening.
So... how much help in opening the knife is the disk really going to be?
I'm not typing this simply because I don't want a disk. I'm thinking about how useful it might actually be. Think about the geometry of the back-spring on the 110. The blade shape at the pivot is made so that the back-spring keeps the blade closed. There's more tension in the beginning motion of opening the blade than the rest of the path. Is the disk going to be big enough to actually give you a place for your thump to catch and open without being to big to interfere with cutting tasks?
Most of the disks I've seen and handled have been on liner locks or frame locks. Neither of these types have much tension holding the blade closed. It doesn't take much to get them to open. Some even have bearings to facilitate a smoother, faster opening.
A thumb stud I can understand because it can be located virtually anywhere on the blade with a left-hand or right-hand bias, and you can remove it without any issue.
Perhaps the disk could give a much better parking place for your thumb in lieu of jimping when you need to really push the blade through something? But then of course, we're limited by the geometry of the blade. Hollow grinds are great cutters, but not the best slicers after all.
I think a view from the top, or at least the dimension of the disk should be provided so we can get a feel for how intrusive or useful it might really be.
Something more to think about...