In light use with the smaller knives, I didn't notice much difference. Had I done more extensive cutting I would have found out that SR101 holds an edge much longer than SR77. I first discovered the difference after some extended chopping with my Chopweiler. It just never seemed to dull, while I had to lightly touch up my DF with a ceramic rod from time to time. The point is, Recon, until you have used both steels side by side for a while, you won't know the difference. You can be sure that SR101 is plenty tough for use in a military knife and has superior edge holding to SR77.
For what it is worth I think the heat treat on the SR101 might be slightly higher than that given to INFI....by this I mean my RMD seems to keep a razor edge slightly better than my smallest INFI blades...which are 6 inches...save that my first Skinny Ash which has been sharpened by far the most....now does match the RMD...it is as if the INFI blades need to have a bit of steel removed to get to their best...whereas the SR101 RMD seems able right from the off...
I have heard other HOGS mention this in the past...and it seems to pan out so far for me...regarding some INFI edges improving after a few sharpenings....naturally none has ever said SR101 holds a better edge....maybe my experience is just a reflection of this need to take the INFI edges down a bit with sharpening before they give of their best......
