Light defoliation?

Hello friend, Congratulations on such a big bush. That's a bush that would do the 70s proud.😁 I would say definitely go in and give a mild haircut, I'd go with about 20% removal. But I'm also a big believer in cleaning up the bottoms also from unnecessary leaves and bud sites that will be in the shade the whole time and just be little larfy buds. I say cut those away also and let that energy go back to the main buds.👍