In regards to the Amberg lock, it is a good lock that can be used for dispatch. Years ago it tested well against other dispatch locks. However, in the tests, "poor" versions of the true style cam lock were used. So in the end, the Amberg was found to do well in dispatch, but was never truly tested against the cam lock. I would bet the whole farm if the two were compared in tests side by side, the superiority of the true cam lock would be evident. I am also talking a few more percentage points here.
Suffice to say, I would not say the Amberg has design flaws, it is a different lock.
The cam lock is heavier built. The rivet used is better. I have received many Amberg locks where I could use my finger nail to remove the rivet. The cam lock is more tight. The Amberg has some slop inside it.
I only use a loaded snare. I learned from Leonard Pavek over 20 years ago. In the beginning, I dismissed it's application and kept using normal snares. After a while I realized a few points about it. Loaded snares give a great loop appearance...more round and open, which I prefer than just bending a figure 7 at the end of the cable that gives the tear drop shape appearance. When using 1x19 it gives an unloaded snare a more round appearance than the 7x7. It also does not close as well as 7x7 in smaller loop diameters. It gets stiff in a hurry. When snaring fox and coons, this stiffness leads to animals slipping the loop entirely or getting caught on the gut or hips. I mainly speak of 5/64 or 3/32 in the 1x19. The 1x19 loads well.
The 1x19 has a smoother surface and gives way to "less" surface area for a lock to get a hold of. To compensate for this fact, some have filed checkering on the surface of the cam lock to maintain it's holding ability. As far as locking potential, the 7x7 is superior because it's a rougher cable that gives way to more grabbing surface area. You have to strengthen your stops on the end of your snares or heavier shock loads by 'yotes, etc, can pull them right off.
7x7 is good cable to use in live capture as it's more pliable. The stiffer 1x19 is more apt to unravel in short lengths. The strength of a cable is the synergy of the cables working together. Separate strands and they become more susceptible to breaking by twisting or biting.
When I reference information, I speak about animals caught over a longer period or higher in numbers. An average snare person only snaring a few dozen animals a year could perceivably have completely different results, but the records and statistics become more accurate given a higher number of animals taken. It's entirely possible to have 20 coyotes caught in a compression spring assisted cam lock using 5/64 1x19 and 11 feet of cable...and have 15 of them alive. Snare 500 'yotes and the statistics will become very accurate and guaranteed you won't see near 75% alive like in the above scenario. I can flip a coin and have it come up the same 5 times in a row, but how about 200 times?
Snareguy-