Not exactly RS, because you're understanding of Strength and Toughness is off.

I've actually mentioned that there is a difference in A LOT of your threads.

sr77 is not stronger (well, I'm pretty sure bld is mixing them up, but feel free to correct me if I'm wrong or post some info etc.) which is why the edge will dent/roll easily (or more easily then a stronger edge)... especially with a thinner edge.
sr77 doesn't take too much force to deform (as far as knives go) however it can deform a lot (this is especially noticed laterally) without breaking.

sr101 is stronger and will not bend as easily or dent/roll easily...
It's edge will stay more stable...
however it CAN with enough abuse get some small chips in the edge (though sr77 would probably have chips too, because after so much deformation it will begin to chip or blowout) and will not bend as far as sr77. (laterally)

strength is basically how much force it takes for deformation and toughness is how much deformation something can take before fracturing.

If that helps any.

knotslip: s7 is a tool steel used in jackhammer bits, not a spring steel.
It will take a set after too much bending. (though I think Dan has proved that it can bend at least 30-35 degrees without taking a set?)