Here's what I find, there is a security compromise between the two and in both cases.
If you don't have the Boye dent, you have to press the lock bar down much further, almost bottomed out to release the lock.
If you DO have the Boye dent, the end spot might be about the same, but there is about half of the travel distance for the Boye dent to reach the bottomed out position for the lock to release.
I think both options operate well and both seem safe. Maybe I'm just used to the Boye dent, but I feel like those close a little easier.
Same as David, I've only ever had a lock back accidentally release was with another brand and I was squeezing and twisting the knife.
A distinguished lurker.
Waiting on a Squeak, Pingo, and Cliptools with a Split Spring!