Study(docs.google.com/document/d/1w8m4lzzioodprd8s-ldhltnby405x5wjn09dpa4ywsu)observes t spike 7 days after ejaculation. can these spikes stunt growth?

No: The study showed if one doesn't ejaculate after 7 days there's a small spike in testosterone.However,if one ejaculates regularly T rises a bit each time. T seems more likely to enhance growth than stunt it.Bottom line- sexual activity or lack of it has little if any significant effect on T levels or growth. See http://www.livestrong.com/article/246689-the-effects-of-masturbation-on-testosterone/