No, not on same branch. I crossed my Ass Cheese and Gorille de Raisin with both Ass Cheese and Powernap X Sinmint Cookies pollen. How I did it was to dust the limb you choose, mark it with a colored twist tie, cover with a plastic bag, then spray down the rest of the plant with water. The water kills any stray pollen. Wait until you can tell the pollen took. A couple three days you should see white hairs turning brown on the dusted limb. That is your signal that seeds are starting to form. Wait a few more days, then dust a limb well away from the other one. Cover limb with plastic bag and spray rest of plant with water.