Plants are getting too big for enough light coverage, so had to buy a second grow light.
As noted before, the plant was getting out of hand and growing at many different heights making it difficult to set the optimum light distance. So, I went a little crazy and did some serious pruning (yes, during flowing, I know). Also trimmed off a number of fan leaves that were either beginning to yellow or were otherwise blocking valuable light from the many of the smaller buds. Fortunately my plants are very resilient and are finally at mostly equal heights now.
Hindsight 20/20: I now have a better idea of how to route my plants using the ScrOG method. I found a well written blog that answered all the questions I had that other article didn't.
Bottom line: Instead of allowing the main branches to grow through the netting and re-route the offshoots, I've found it's better to keep the main branches under the netting and allow the off-shoots to grow through instead. Think of it as the plant growing sideways.