Youu could take the odd leaf off if its heavily shading those inner branches but not alot as they aren't that thick.Some light will penetrate a leaf,mostly the deep reds but not a number of leaves.My last grow shows a good example of how Iv opened up the inner canopy on my shishkaberry after training .You don't need every single leaf.The plant can only use so much energy.There's nothing natural about these strains and they evidently do amazing when they've been savagly stripped,like 70% off so a few choice leaves is harming nothing.