The position of the X was easy to find even early in the evening before it showed, Werner crater is directly below the X with Aliacensis below that again, the large crater to the side is Playfair G.
The actual X is made by sunlight falling on the crater ridges of La Caille, Blanchinus and Purbach.
Telescope / 4" f/11 Lyra
EP / 3-6mm Nagler zoom at 5mm x220
2140 UT - 2235 UT
Transparency / Excellent
Lunation 7.53 days