Neither of the hones he is using will correct Taper or any type of ovalling . If the cylinder has up an down bulges or a taper it will get worse.
A fixed hone has two stones and a scraper /follower. They are also adjustable to size by turning the large wheel at the top to only take out the dialed in material to the finish bore as I pictured above. Another words you can hone as long as you want. if you don't expand the tool it stops cutting at the diameter you tightened it to.
The ball hone can be used to deglaze a fresh build for newer rings in a bind .
The three finger spring tension hone is for fixing and rebuilding hydraulic cylinders that are using a rubber lip seal. Such as jacks and wheel cylinders. and tractor cylinders. With an extension they are used for honing long equipment cylinders. They are not designed for engine rebuilding. Period.
Do people use them? Of course look what tony did above. That engine will start up and run. For how Long? And how Good? That's the mystery that time will tell. Will the rings be sealed for the total travel of the bore? Probably not but it will run long enough to get paid for the job.
