It's a fantastic thread, but yeh, LOTS of info to get through....lot of great info here to dig through and study
Followed the advice and swapped the airstone for a regular water pump, and running it 15mins every hour (timer has 15m intervals). cheers @NoviceKushVillage! 1 step closer to a fully dialled in grow.
In terms of the feed schedule, I'm still experimenting - I'd love to see some side-by-sides of the same strain under a heavy versus light feed schedule. I'm on the light and regular schedule and seeing great results, the potency of the nutes available is always the same strength around the root system, which to me is optimal. We shall see, always learning and keen to hear other's opinions.