Winter Solstice Sunrise and Stone 58

I have been remiss in not linking to a couple of sites that propose a Winter Sunrise Alignment through the notch on Stone 58.

Novacaster Community: Winter Solstice Sunrise alignment at Stonehenge - An excellent paper from my friend Simon.

OBSERVATIONAL ARCHAEOASTRONOMY AT STONEHENGE: WINTER SOLSTICE SUN RISE AND SET LINES ACCURATE TO
0.2° IN 4000 BP
Gordon R. Freeman and Phyllis J. Freeman - A more technical paper.

(Note this isn't a Winter Solstice Sunrise picture, but a close up of the notches on Stone 58 - and here is the reverse of this picture - again not the WSS alignment but a gap we call the diamond which points nearly due east.)