JTS Melee Calculations

[BigDuke66]

Your description reminds me more of the 7YW, were armies tried to fire the other side of the battlefield. Prussia was successful in that aspect, but where was that really the norm in the Nappy era?
Early(1805-1807) we see that units of quality fired and then meleed to maximize their impact on the enemy, but it's not like they engaged in an extensive fire fight.
In 1806 Prussia seemed to have tried this near Jena when they decided to go close to the French position later in the day without engaging them in close combat. We all know how that turned out.