I don't know how the germans did it, but I would assume that bounding overwatch would be done with platoons, not sections. Here in Norway we use 4-tank-platoons, and bounding overwatch with sections is becoming rarer and rarer even though we have the two sections required. With stabilised turrets, the need for fire support from a stationary unit is decreased(quite considerably), and chances are you're sending the bounding unit out on its own anyway. It depends on the terrain, but if your opponent knows what he's doing, he is perfectly able to deploy his units with frontal cover. This will mean that your covering unit won't be able to detect them, and they'll ambush your bounding unit. In that situation, you'll have 2 barrels to use instead of 4. This is an especially big problem in our terrain, with lots of forests and obstacles. We've tried different tactics(bounding vs whole platoon advancing) and have found that bounding overwatch generelly is less effective, in that it usually only subtracts 2 of your own tanks from the fight. I have served as a platoon leader in the past 2 years, and I almost never used bounding overwatch.