im in the same situation,the vet stapled it,after 4months i ran her it held up a few days later it split,i glued it straight away,after 2months she had a short run it split again,i glued it,it split,now ive left it,i keep it clean and my fingers crossed,its when she really puts the power on that it splits,ive took to the idea she may not run again,shes only 4yrs whippetxgrey,good luck mate and i understand any frustration you feel,patients mite be good i dont know if i should have laid her up for longer when it first split,i took the vets advice which was a failure,im gutted.