The company I fly for wrote, tested, and implemented the Reduced V1 procedure described in the Boeing magazine article. We compute V1 normally and then subtract 8 knots. The V1 call is made at the new computed speed. There was a lot of doubt in the pilot ranks at first but after one high speed RTO at KLAX we all became believers. It was obvious that another 8 knots would have put them in the sand dunes off 25R. It is just normal to us now. Like Willit Run the majority of our takeoffs are max effort, on the edge of everything. We even do over speed takeoffs and aft cg takeoffs with reduced screen heights to get that last pound of freight. Factor in old airplanes, worn tires and brakes, 59 year old reflexes and the 8 knots becomes more attractive. If I were flying short haul high powered new generation aircraft I might feel different. But if you are operating on the edge of the performance charts it is something to consider.