i have had lights fall and bend and break my plants befor sometimes i just leave them the way they are bent and let them fix their selves if there's not to much stem damage and they seem to do fine the twine you used might not be the best thing it could cut into the stalks depending on how thick it is and how tight its tied i have splinted and taped branches but once it is broken to a certin point its just kinda a lost cause as for the hermi thing if your doing every thing else right i wouldnt worrie about it and i dont think you have to worrie about the tape poisening the plant i used sports tape on mine good luck :thumbsup:

-Bomb