why

Not that its a bad thing just curious to why are my plants starting to grow so fast now? Is it the extra hours of sun or just do plants start off slow like this all the time and then go crazy. Its my first just curious for future reference

More leaves allow for better use of photosynthesis more intake of nitrogen then more use of co2 = vigorous plant growth.

oh okay. So i see why topping it would increase the yield

Plants grow as there roots do. So growth sperts happen. And topping dosnt nessiserily make better yeild. Just more locations for bud sites. Yeild is all in the grower.