Hi, Apology to all to mass mail everybody but I really need some help. I was wondering for a typical job shop problem (like the benchmark problem Muth and Thompson 10x10 and 20x5), whether all makespan lengths are possible. i.e. for 10x10, the shortest possible makespan I believe is 930 so is all the make span greater that 930 possible? Say 931, 932, 933 and so on to maybe 1300. Thank you regards, Allen