Thanks McB! I will be starting the res change today. I was going to start last night but was way too tired! And I was amazed of what a week can do of not seeing your babies! They are huge! I will give you a formal update as soon as I'm done with everything. My res change probably won't be done for a while due to my 100 gal/day filter. Thats the first upgrade gauranteed!I have always gone veg to bloom nutes and skipped the transition. Only flush I do is at the end pre harvest. This is with Technaflora BC series veg to GH Flora Series Bloom.