Joe,

All I was saying (and it seems you agree now) is that the snaps on that 1-6 sheath are not same "Baby Dots" as the Johnson Baby Dots.

IMO the only major impact of the ownership change at Heiser for Bo was their agreement to use his stamp!

Yes, I think Bo agreed to have Heiser attach large "baby dot like" snaps to at least one sheath around 1960 and there was no discussion about "stronger" snaps at that time. Bo was only interested in getting a knife or knives to his customers at that juncture.

Any of Heiser's steel snaps were "stronger" than the BB's because of the material differences. You and I have a lot of experience with BB's. For the most part they are still as a whole functional after almost 70 years! (The real fragile snaps were the translucents). IMO the reasons Bo did not have Heiser switch to steel snaps was:
1. The marginal BB "strength" issue was not causing any consequential loss of business.
2. He didn't want to pay to tool Heiser up for a steel snap with the Randall name stamped into it. (Until HKL agreed to put the Randall stamp on the back of the sheath, there would have been no way to link a Heiser sheath to a Randall knife).

It may have been the harsher conditions of the humidity in Vietnam that prompted Bo to switch to the Baby Dots. All of his sheaths made pursuant to WWII had steel snaps and the numbers nor prolonged months of humidity weren't there for Korea.

Anyway, all food for thought and some good exchanges here! It's interesting how just one sheath coming up on e-bay can spark this kind of mental stimulation.