Isn't it a little bit late in the growing season? (i don't know, may be where you are there is yet enough time in the season to allow good flushes), but in my case, i pugged mine in the beginning of the growing season to give the tree a whole growing season to recover from the pugging and to send a decent number of shoots and to benefit from the energy acumulated during winter to flush good scaffold branches, if it was my tree under my climate conditions i would wait till spring and pug it. But it is your call depending on your local conditions.