Tried operation Sonnenwende (Solstice) using Rapid Fire down at the club today, details of the scenario, etc can be found on GWP at
We fought for 5 hours (12 moves) but didn't reach a final decision, but it was hardly likely that the German s would reach their objectives as their losses were being to mount and all the Russian reinforcements had arrived.
The real problem was the slow movement rates.roads and cross country rates and cross country half of that. As a result the Germans had only reached the top of the ridge. The high point of the game for me (as a Russian) was taking out one of the Tiger IIs with a mine and then managing to finish it off with a lucky shot from a Sherman 76mm.