Did a lousy job on all of them

if you want a decent sharpening job done.....buy something else.

Does a very consistent job, but definitely has limitations

But it’s really close and it does a really good job of sharpening a knife.

None of them did a good enough job and I finally stopped carrying the TTI and started carrying a Charge AL with a 154CM blade that was much quicker and easier to sharpen

None of them did a very good job on that hard vanadium blade