I used it for a few years.I didn't do the flower routine tho.I went 11/13 straight to 10/14. I run 10/14 now.I read that thread on RIU you speak of.It's the reason I tried it,I'm a tinkerer,that and I like to spend as less on my grow with the best results as possible.
GLR IME and opinion can also help stretchy or leggy strains be more squat.I don't know the science behind it but,as Hotwired said these gals can only use so much daylight.
Perhaps as they reach their DLI requirement and are still being blasted with the same number of photons as when they woke up,causes some intermodal elongation in some cultivars? (Heh,the shit I can think of when blazed) Sounds good but probably way off.
I may just revisit my the GLR veg schedule being that summer is here.I veg under 14/10 and flower 10/14, I've tinkered with 15/9 but it was summer here and humidity is brutal,that extra hour of darkness had the dehuey humming.
(I wrote this earlier in response but apparently I didn't hit "post reply".
I've done that in bloom with plants that looked like they were gonna take forever to finish. Can't say that it helped, and can't say that it didn't, since I'll never run a long finisher a 2nd time.
Man, it just feels too easy. Why hasn't this become well known? Also, why hasn't this become everyone's go to method? This makes so much sense if there's no major drawbacks.
People become brainwashed with the old canna way.Like Cal mag cures everything even warts, light leaks cause hermies etc...afraid to step out of the box and experiment or tinker. I understand those with commercial grows and those who are dependent on a certain amount at a certain time.
As Ol Heis mentioned, Old cuts being hormonal imbalanced by the screwy schedule and revegg'ing whilst in flower, then ref lowering or new cultivars and cuts for that matter....drawback.
Had it happen to 3 different new cultivars to my garden before I understood what was going on. It happened under a 6/6/6/6 veg schedule tho....tinkering.
Some cultivars,if not grown from seedling under the schedule may do "freaky shit" Heisen spoke of,if put under the schedule.
I've found seeds mature,pre flower and sex quicker under GLR than standard veg schedules...i.e.16/8 18/6 20/4 etc..