All I have used is the SR 101 and it was just light chopping and batoning. I accidently hit a hidden staple smack in the middle of the blade. It barely nicked it and it is still hair-shaving sharp. sr-101 all the way! (Especially at these prices.) I just can't wait till my 911 shows up. Super excited. The 1311 sounds sweet, but the thing that attracted me to busse kin is the amount of steel they use.

Also, the composition of these steels is really going to tell you how they perform, although I will say, "Heat treatment, Heat treatment, Heat treatment!"

Look at the difference in carbon content man.

Carbon Manganese Chromium Vanadium Tungsten Silicon
52100 1.10% 0.35% 1.50% - - 0.35%


Carbon
0.55%

Manganese
0.70%

Chromium
3.25%

Molybdenum
1.40%

Vanadium
0.25%

Silicon
0.35%