WELL I BEG TO DIFFER ABOUT TOPPING IN VEGG. OR BUDD BECAUSE AS LONG AS YOUR PLANTS ARE HEALTHY THEY WILL DO FINE IN EATHER, I HAVE NOTICED THAT IF YOU WAIT ABOUT 2 WEEKS IN TO BUDD AND YOU TOP THEM YOU CAN USE THE TOPS AS STARTS, I ALWATS TRIM ANOUT 4-6 INCES OF FOILEDGE OFF THE BOTTOM. AND TOP IT TWO WEEKS IN TO MY 12-12, THE TOPS MAKE GREAT STARTS AND THEY ROOT FASTER WHEN THEY HAVE BEEN IN BUDD FOR A COUPLE WEEKS, NO IM NOT TO SHURE ABOUT THIS LST METHOD I HAVE TIED A BIG LIMON HAZE DOWN AND IT GREW FINE BUT, I ALSO KNOW THE SHORTER THE TIME YOU VEGG AND BUD THE LESS THE PLANT IS SUSEPTABLE TO BUGS MOLD AND DEFECTS. SO ALWAYS GROWE THEM ABOUT 16-24INCHES IN GROW DEPENDS ON IF ITS A INDA, OR SATIV, THE INDA SEEM TO SHOOT UP ONCE IN 12-12. SO I ALWAYS PUT THOSE IN AT AROUND 16INCHES THE LAST G13 I LET GET 24 INCHES IN GROW, imp:WHEN IT WAS DONE IT WAS ALMOST 6 FEET TALL IN 5 GAL BUCKET. BUT I HOPE YOU HAVE AWSOME GROWS GOOD LUCK AND GOOD SMOKEN!!!!!!!!!