md threads with only a single interlacing in the machine side md layer and spaced apart crossover points the additional threads can shift relative to each other and threads 70 and 71 tend to act as one thread in a continuous plain weave on the top layer as a result of the long transitions the interlacing patterns and the spaced crossover points the additional threads can migrate relative to each other to produce the desired sheet side weave pattern while also providing mid plane floats and long transitions with reference to fig1 15 there is shown a fourth embodiment of the present invention in this fourth embodiment the first additional thread 75 weaves between md thread pairs 10 11 12 13 beneath md threads 14 15 between md thread pairs 16 17 18 19 20 21 and then in a plain weave repeat with the upper layer md threads 24 26 28 30 32 the second additional thread 76 weaves in the mirror image of thread 75 as shown by fig1 the threads 75 and 76 produce a plain weave pattern on the paper sheet side relatively long transitions which combine to simulate a mid plane float and cross over points 77 78 which are spaced by five md thread pairs this encourages migration of the threads 75 76 relative to each other as with the prior embodiment this embodiment provides a continuous portion 81 of the weave repeat that extends over at least five adjacent paper side longitudinal threads between transitions from the machine or paper side longitudinal threads referring to fig1 18 a fifth embodiment is shown additional cmd thread 100 weaves in a repeat pattern that passes between.