Sorry , but i have not still understand where was palced the great battery.
If d'Erlon corps , looking at thilio historical map and enemy corp (near the main road),was at distance of 900 meters
how is possible hipothesis (post #57) that great battery placed at half way (500-600 meters)?
When all speaking of distance of 800 or also 1000 meters from enemy.
In addition , i do not see well thilio map , but seems there was a little road from Belle Alliance to Papelotte,to facilitate move the guns with muddy.
For me is 100 meter more advance d'Erlon corp or not?