Depending on your conditions and overall health of your plant, it can take 1-3 days for the bend to begin to correct itself. I try to get at the girls early; allowing time for healing and new growth, to get them as wide as they'll get tall. Everything I do is super cropped and fimmed/topped. Granted, a plant has a genetic "yield limit" eg; it won't produce more than it's destined to. It's our job as growers to get as much as possible out of our ladies and LST, topping and super cropping have been AMAZING! EVEN IN FLOWER! Although, you want to do the super cropping early into flower {first 3-4 weeks} because it does slow the process due to healing. However, I've done side by side comparisons using same and different strains and I find the super cropped colas are denser, thicker and bigger. If it does break completely in half {barely hanging by a thread} you might be able to tape it or your idea was great as well. If it's a long piece that breaks off, you could clone it; even if it's a couple of weeks into flower. Nip off the buds and the light change will snap it back; not if in late flower {impossible}.