looks like where the plant is healing broken tissue from lst,ing... If you supercrop you get a big brown knot at the popint where you bent it.. looks fine so far.
looks good !!!!!!try pipe cleaners they kick ass ,Ive used zip ties ,string plant ties /bread ties and 2$ pack of pipe cleaners workes the best !walmart sells them under the
name ''Fuzzy Sticks'' for two bucks happy growing!