Yeah you could tinker with the 24th and 66th Army setup and 'T' tag and come up with a fix for the scenario I am sure. That is my point, it needs a fix. Unless your German opponent agrees not to use this ploy, as Rev has kindly agreed too :)
On the German mobility yeah its a big advantage. The Soviets are like snails in comparison.
If the Germans had fuel problems and could not move their formations around so readily why not just FIX some of them in place for a day or so. This might just delay the mass concentration of German power long enuf for the Soviets to hold on to the initiative.
All that said I really enjoy this game its one of the best CG battles of the series.