^^^^^^^^^^^^^THIS^^^^^^^^^^
If you just need to prep the surface, the dingleberry wont change the bore geometry.
If the bore isn’t straight and/or round you can used the rigid hone.
Just make sure you are DAMN good with snap gauges and a mic or you have a bore gauge because with a fixed hone you can remove a good bit of material in short order.
And you need to over stroke the fixed hone so you don’t barrel shape the bore (make the center bigger than the top and bottom of the bore).
