[Aquattro]

So I find myself in new territory, I've never upgraded lighting before. Going from 2x150DE to 2x400 SE 14k. What have people typically done for timing on similar upgrades? Using screening isn't an option, I just have the timer to play with. Currently I'm running about 2.5 hours, twice a day. I figure I'd increase by 30 minutes each side until I hit my 8 hour photoperiod.

Thoughts?