Hi, its not going to really matter. Make sure ur piston ring ends r properly located by the locating dowels that r in the ring grooves at the back of the piston (either side of the intake port). These are to keep the ring ends out of ports. Cheers
Makes no difference.
Just be sure the rings are indexed correctly and the piston-pin circlips are fully seated.
Spin it by hand often during assembly to be sure everything is free and right.
Use your usual two-stroke oil as assembly lube.