I use 2 x HLG flower initiation lights 5 minutes before light out each night and for a further 5 minutes after lights out. This initiates the Emmerson Effect (look it up) which means I can run a 19/5 lighting schedule during veg and a 13/7 schedule during flowering. Doing this reduces the veg time from 4 weeks down to 3 1/2 weeks. During flowering, it makes an 8 week flowering period take only 7 1/2 weeks, 9 weeks down to 8 1/4 weeks and 10 weeks down to 9 weeks.
Back left is a little deficient so I've kept a spare clone just in case it goes tits up. It's been 3 days in the pot now with proper nutrient levels and is starting to come good. First day in their pots I kept the lights at 50% and about 1 metre from the top of the pots then turned the lights up to 100% on day 2. Day 3 I lowered both lamps to be 60cm from the pot tops but reduced the lights from 100% down to 50% strength and tomorrow I'll turn them both up to100%.