I have used 5/8" and 3/4" Amsteel on my John Deere 540 Cable Skidder, and I will never use a Steel Cable again for a Cable Skidder, never. I will never use the 5/8" Amsteel either, LOL. The 3/4" is flat amazing in strength, and you will be constantly amazed by its performance.
I love the stuff:
Con: Low Abrasion Resistence
Initial Cost - (Now don't be short sighted here, the stuff does pay for itself in increased productivity and you can reused the "unused" portion of the cable)
Pros: Super Strong for Logging 3/4" and bigger is needed.
I can splice end loops in under 4-6 minutes with my "kit"
Super Light, if pulled out properly by the skidder you don't notice the line's weight.
You can reused the un-used first section of "cable" by splicing it to a new piece.
If you break it or damage it in the middle, you just splice it and carry on. With steel the whole cable is worthless.
No damage to your hands.
No more cable cutters or cutoff wheels, as I just cut it with my pocket knife in the field.
Splicing is now a quiet and peaceful operation and not some battle with a steel cable that is constantly trying to get away or stab me.
It is super cool, LOL.
My experience with Amsteel,
Sam Nelson