Always hone to assure proper ring seating and use proper honing oil , the left over cross hatch had rings already wearing against it , it is a good idea to start with a freshly honed cylinder, you indicate there was a problem with the first ring /piston assembly so start with the correct cross hatch and proper grit of stone to suit the type of ring material to insure good ring seating, always clean with hot soapy water and wipe with a clean rag to check for left over hone abrasive. for just a re-ring job I use the expandable spring type purchased from an auto supply or the berry bush type , after a re-bore in order to bring cylinders to size clearance ,proper finish, I use a Sunnen A N micro adjustable . be sure to check ring end gap, Piston ring land clearance,depth etc. and piston to cylinder wall clearance, you didn't say why the other pistons failed , if you don't mind what was the failure of the pistons at such low mileage ? this sounds like the pistons may have been installed incorrectly or a number of other contributory factors.
