Hej
I hear finger choil is about control. For me it’s about balance point.
I hear thumb on spine is about control. For me the thumb joint is a weak joint for pressure. Hammer grip is for pressure. Thumb on spine on jimping is for forward motion.
And when the finger choil is a finger groove it feels great with thumb on spine, but with a finger groove a hammer grip is worthless because the index finger will have no support.
And to come clean, I’m from Sweden, land of Mora and non self defence. I love knives, mostly american knives. But I some times wonder what in american ”outdoor knife” designs that is compromise to self defence.
First off, I find your post confusing as to questions asked & statements made that are innaccurate relating to knife handling options.
Whether or not a knife was designed with 'self defense' in mind, finger choils &/or finger grooves offer some blade edge protection, in a forward grip and when held in a reverse grip, they act the same
way. Spine jimping on the blade spine, & sometimes
'con't' behind, along the top of handle, not only give traction to your thunb, but are also used with the index finger extended on them to cut in this fashion, as well.
The Mora, that you're familiar with, (although Not designed as a defense knife) could, (like many other knives) be used in that manner.
Your fingers aren't all in same size, so choils fiting your index finger and middle finger won't fit your pinky finger that well, and vice versa.
Ofcourse, we all have different size fingers and hands, as well as varied finger / hand dexterity between individuals.
I would say that I have relatively large fingers & hands, but again, I have No comfort &/or control
issues reversing a forward grip to a reverse grip,
as long as the finger choil(s) and/or handle finger grooves are adequate for my larger fingers, than
my pinkey will fit just fine.
-I'm looking at four knives, including the C.S.Code4,
the Spyderco Manix xl, a Kershaw Skyline, and a CRKT Minimalist. All of which have one or more finger choils, with the Minimalist having Three,
making up the handle.
If you're familiar with the size of this one, It's basically a three finger grip knife, yet in either grip,
'the fourth' finger just naturally wraps to close your grip, or whether the original corded fob/lanyard is
still intact, (can also add some handle retention.)
The Manix xl offers Two finger choils, one behind the pivot, in the handle scales, offering a full four finger handle grip, and another one formed between
a jimped area on the rear of the blade, and the jimped portion of the scale.
Along with the spine / thumb ramp jimping and the
2nd choil, this offers a 'choke up' option, while still providing a secure grip.
I also see the benefit, & security of guards and choils on fixed blades, as well, but in regards to this-
It is interesting how many knife makers randomly put choils on folding/short knives, so a user can 'choke' up onto the blade. Personally, I value a choil if it is a big blade..
Unless the goal is to achieve compactness and shorter overall length, unnecessary small finger choil is a waste of prime real estate on a short 3-4" blade for me.
I disagree, as per the four knives I chose to look at,
b/c the folders all are in this blade range, and the
blade choils offer fine grip, with no loss of handle.
I agree, however, that a choil that is too small for a
a finger, should be an obvious 'sharpening' choil.
With all this said, It would be nice to see the O.P.
at least acknowledging the responses.