I've used the 'layover method' several times running in Earth boxes. Just plant on one end, about the time you would top, take a pull on the top main cola toward the opposite side and just keep on adjusting as the plant grows.I just about always top my plants. I like the even structure and multiple equal sized buds. I recently bent one all the way over and trained it from there. I like thenway that one turned out too.
I have a Citradelic Spice in a 5 gal pot now and grew one in a 3 gal last year. Looking forward to see what the difference in harvest size will be.
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I haven't had a chance to use it on photos, but it does work quite well on autos.