Yes the OKC 5160 blades are my heavily absurd use knives.
I use the SP-51 for batoning and such and wood whacking and hacking. But its been sunseted, and gone from the market unless you find one on the secondary market. Glad I got 4 when I did!

I find the straight blade is better/easier for me to baton with.
The other good wood batoner that is FFG that probably performs like the SP-50 is the Ranger RD 9 with a good heavy hilt! Its choil makes it a good all round woodsy blade if a bit top heavy. It was retired a while ago but a few places still has them. I carry it when I take one or two blades for some thing lighter.
The best chopper I found is the SP-53, I use mine for heavy wood whacking and batoning as well. The re curve I'm still learning to sharpen properly so I use the SP-51 for most common tasks.
For a good still in production knife that is a SP-50 with a full tang, the OKC Woodsman also has a choil. 90 degree corners, I put some tape on the handle to reduce slipperiness.