For close in/medium distance obsticles, Boeing (on the B707) and Lockheed (for the TriStar) produced specific runway charts for overspeed/improved climb performance (for several takeoff flap settings) which, if properly applied, works quite good.
This is only applicable however, where excess runway length is available, for these slightly higher V speeds.
ZRH, runway 16, is a perfect example, where this has worked for me in the past.
Several ways to skin the cat.
