Just got a prodigy. I was nervous at first but the versatility of the sheef has been amazing. I can mod my sheef from my waist, to the kit, to my backpack
I've had a prodigy for about 8 years. I've abused the living hell out of it and aside from the handle changing colors from years of staining, it's no worse than the day I bought it. I wanted to buy another to have as a backup but they're a little more difficult to find now so I got a strong-arm today. I haven't used it yet but based off ergonomics alone, I prefer the prodigy so far
As much as I like the looks of The Strongarm, The Demko Armiger is $10 cheaper. I'll take .14" thick 80cr over .19" of 420, but that's just a personal opinion.