Jarbo’s idea dovetails nicely with the changes to bomber implementation envisioned by HiTech for v1.09, IMNSHO. By the way, I don’t recall HiTech saying anything specific in the interview on wargamer.com about increasing target hardness, only that he would add dispersion. However, I hope that he also addresses this and other aspects of level bombing, such as a more realistic bombsite that will require some practice to learn to use effectively. Wind would also be a nice change, such that the bomb-aimer would have to determine wind correction factors. The toughness of buildings would certainly have to be looked at as well. I would even go so far as to suggest that cities should have a mix of factories, railyards, and residential buildings, such that bombs that hit residential areas would actually take away perk points (but that may just be my years of indoctrination into the US Law of Armed Conflict talking

).
Jarbo’s point is that bomb damage to strategic targets should be harder to inflict, but be more persistent. That way, multiple missions by a reasonable number of bombers would be required to significantly impact the rest of the war in the MA; conversely, the longer rebuild times would give people the time to make those multiple missions. The number of resupply missions and/or trains required to rebuild the strategic target would have to be adjusted as well. Nice idea, Jarbo.