Buddha named Jesus

I wouldn't bother. For the amount you need to bend to add an extra 5 cm would be a lot. She's not going to gain anymore height.. so you shouldn't need to. Also. If you hanging it by the pullies. You could loose them and just tie them closer to the bars. But, she main gain another 1-2 cm in bud mass on top. But I wouldn't worry about it. Shes done growing upwards. Good growing.