Main-lining

Any photo you can really get away with mainlining. But it's really simple. If it's indica they tend to be on the shorter fatter bushy stage and anything liking scrog/mainlining they love. Sativa likes to grow up and be like an Xmas tree and does better left alone to grow up and be nice and big. It'll have the sizes on each strain. Anywhere between 80-100cm is a gift to mainline anything huge like 150cm can be ML but they are big girls for a reason and focus on many bud sites where indica leans more on cola busters and therefore in my opinion are the more desired for ML. (Stay away from ML autos, they don't have enough veg time to get a decent manifold) Good luck pal