@JD, I stopped into my local knife shop this afternoon and pulled out all 9 rosewood, and the lone black 301 he had. I pulled the main blade in each of them and I'm sad to report that they are all mushy and had no "snap". These were all NIB and the rosewood models were from 2014 through July this year.
If just one of them had tension anywhere near my Case slip joints I would have snatched it up for you. Unfortunately, that wasn't the case.
I'll find one to year apart and tinker with one of these days.
Thanks for the thought my friend. I think the odds are against me of the 301. I would LOVE to find one that had the tension that my Case knives do. I don't think I'd ever leave my pocket. Hopefully I'll get some time one of these days to tear mine down and see if I can bend those springs...