I would like to seperate your comments and address seperately but my work computer isn't behaving properly so it is bunching all together, sorry for the difficulty in reading this may cause. My analogy wasn't brand vs. brand but idea vs. idea. I'll expand on that at a later time if necessary. Flipper for arthritis, yes I can see that. I only know of one knife person with arthritis, he prefers the hole most likely, but one person doesn't count for the whole. Yes I can see some may prefer that mode. I'm guessing the hole adds 1/4-1/2" to width of a blade vs. a knob or disk, and the flipper would also add 1/4-1/2" to the width (depending on the model) so you get an extra 1/2"-1" of width with both devices....yikes in my book.Personally I like that the flipper adds a built in guard when open, I prefer a guard to a finger choil in general for knives. However in folding knives, I find the flipper adds in inadvertantly open the blade at undesired times.Correct, I can deny the wide market for the flipper and I do own some CLB Boker designs with that feature.