start from the top or bottom??? help plz

so i got three plants that are deff not going to finish to there full potential! not with the weather here in pa! so heres what i need help with. i found three spots of rott on them aalready i picked them off, but when i decide its time to cut i wont be able to do it all at once because of work so im goingto have to cut them up daily. so should i start at the top or bottom??

I would just cut off the buds that are most mature, cuz the smaller buds will still have some time to swell up.