As long as my main colas aren’t suffering I can;t see any reason to get rid of the little ones!!! In my opinion, the more the merrier!!! I have pruned to an extent under the canopy to allow more juice per se to the main colas but as I said earlier, why not leave the little ones? What the hell, weed is weed! As you can see from my pics all is well!!! They are budding so much I have 2 nets on about 6" apart!!! Care to share what that might be???