Ok, this is probably a bad idea but I wanted to get an opinion. I have an older Model 15 that I recently picked up. From what I can tell ( it has a split, roughback sheath and was part of a collection before I got it ) it is an early 80s or late 70s. The finger grooves in the micarta grip don't fit my hand very well so I was considering sanding the handle down to either a single finger grip or just a smooth even grip. Is this possible? I know that this would greatly reduce the value, but I bought it more to use than to "collect". Any ideas or opinions?