Good progress there Geo. I've only used superglue straight from the tube - never seem to be able to find accelerator locally.
Theoretically, it would be better to lightly sand the area, to remove at least some of the primer, providing a better 'key' for the glue. But, as it's only being used to fill a shallow depression, this is not that important. I've done it directly onto primer, then sanded as soon as the glue has hardened - minutes in normal use - sanding gently and doing the 'finger nail' test until satisfied.