Here are some good working scales for the spyderco tenacious.

This is not my original design but I am not sure where I found it. 

I had been looking for awhile and kept finding mesh files that I could not get a chamfer on or get cleaned up for a good print.

This one took a little work and some cleaning up but works well now. 

I print with the faces flat to get that nice PEI finish. I use no support though there are some finger indents that will take some post processing if you use supports or not so your call. 

I wanted these strong so printed as 100% infill.

My next step will be to print in glow in the dark PLA. 

Enjoy.