If all you do with Swinden key knives is cut apples, they'll be fine. In my experience, any amount of enthusiastic use, (not abuse), will result in unacceptable wobble. The only solution is disassembly and replacement with proper pivot pins.
When I could get both Schrade and Camillus (US made) knives for modification and resale to my whittlin' students, I always chose Camillus because they DIDN'T use the Swinden key construction.
I have in my accumulation, a 5OT and a 124UH that I think were probably actually made by Camillus because the pivot pins go all the way through. Of course the LB7, and LB5 have through pins too, and are wonderful knives. My LB7 has disassembled more than a dozen Moose.
In my opinion, the Swinden key system is a bad idea. Everything else about the Schrade products, was pretty good.