Hi Michael,
The brightest LIFs we (including you) recorded since last December are mag 7 at best, so they would produce much smaller craters. They are mostly fragile cometary debris. Larger, denser asteroidal material is favoured for crater formation.
The more mutual, confirming LIF observations we get, the better we can estimate the lunar lat./long. of the impact site for checking in the LRO survey images.
Fingers crossed!
Alex.