rhodes68answered grow question 5 years ago Each and every strain is different and even the individual plants phenos have to be handled a bit differently.
If it's a "leafy" strain then I get more aggressive than a strain that has fewer.
Point is to bring tips and colas into the light, the more of them the better.
Generally a defol in veg to bring out the growth tips and again in early flowering you looking to get light into the plant hitting colas that would have been shadowed.
Easy does it this is more art than science.