Well, if you are going to do it, now is the time. They will have time to recover before flowering. My Kalichakra (also a mandala strain) had a sativa pheno and reached 4' 6" with 2 weeks of flower left. I started flowering at 10". She has many budsites and big fan leafs. I didnt take any off, but I wish I had topped her. This late in flowering, I have noticed that the fan leafs that are turning yellow and starting to die off are fattening up the buds that are in connection with them. The same is happening with the shoot sun leafs. So, I wonder if they were not present, if the buds would have fattened up without them. I have read that the leafs supply sugars to the buds as they are dying off. I have moved them around alot to let more light through, but its not as effeciant as taking them off.. I have also noticed no difference of the buds being any bigger or covered in more trics between the ones in full light and the ones shaded by leafs. I hope this helps. It is only what I have noticed in my grow. Still, you have a hard decision ahead. Good luck.