I just let it grow while going towards classic. Before BSL I was "obsessed" with gaining length, until at one point I just... let it go, stopped measuring, and just gauged my length according to milestones, roughly and when I saw I was close I measured to the milestone. It is such a relief and so easy.
Because it's going to grow anyway, if there's no major hiccups (like iron shortage, breakage, heat damage), and it's just time that has to go over it.
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