yeah one of the defensive techniques the plant uses is to project its sun leaves upward then bring them down kind like its crawling over its neighboring plants, i have also noticed that if you have two plants of the same kind they tend to live fine in the same pot, not sure if two different strains would try to strangle eachother, havent tried, but i have 11 plants in a 3x3 grow space, so yeah they do try to gain an advantage over eachother by out growing one another, but its not gonne make them go huge, in fact all lmine appear slightly dwarfed except the DWC, but then the soil girls one 3 gallon has 2, one 5 gallon has 3, and two 5 gallons each have 1.
basically what my whole grow space has turned into is an 8-10" canopy at about 3" high which resembles a SOG arrangement,