[QUOTE=David Jamieson;1101657]OK, and?
I’ve sword fingered someone in the throat as well and then walked them backwards.
You have to be careful if you want to condition fingers. If you do it wrong, you f*ck your hands up for life so you better know what you are doing in your conditioning and know this, it’s about compression, there is no muscle to build in fingers and it is about desensitizing so with the neuralgia you get to avoid by killing your nerves, you a re also forfeiting the finer feeling within your hands if you do not do it correctly.
I assume you are young, so know this as well, you might think that you are not incurring any damage now, but come back and lets talk in 20 years. 
what you do now that causes injury will re-manifest in your later years, your scars will advance to the surface and your injuries and internal scars will begin to impede a lot of your movement and activity.
When I say it’s rare to find people who know these methods, I mean it. it’s rare.
In my personal opinion, it’s not a very fruitful endeavour.
If you find your fingers getting jammed during conflict then I suggest you keep a tighter fist. :)[/QUOTE]
Not so young and have been doing it for 17 years, no problems. I think we may be defining “conditioning” as different things. I think of conditioning as anything that makes a weapon stronger. So for punching conditioning, I consider pushups a part of that. For fingers, I do various things to strengthen them. Although, I do NOT just slam them into a hard object to kill the nerves. I don’t see a point in that. Your fingers just need to be stronger to use spearhands, not deadened.
In the IP training I have learned you use a tiger claw to strike and strengthen the fingertips along with Jow massage. Even in that, they don’t reccomend using the very tips of the fingers, but the pads to strike and strengthen. It’s like makiwara training, the only studies that have actually been done on it, show that it does not cause long term damage when done correctly. Most don’t and just randomly hit their fist into a large immovable object.
I also think that genetics play a part, if you have a larger bone structure in your fingers than you can do more with spears than if you have a small bone structure.
As to the point “ok and?”, you said and asked to point out MMA fighters or soldier who do it. First, in MMA it is against the rules and second soldiers fight with weapons for the most part and spend their time training those. H2H in general is not even worked. So you give two examples that are outside the realm of civilian self-defense as the standard of what someone should be able to do in a civilian self-defense situation.