This past weekend we hosted the Mid-Wilts Youth Cup Finals, over both Saturday and Sunday - an annual event.  Only this week has it been available to work on on but already it’s undergone all the necessary work and has been re-seeded.  I would think it takes between 6-8 weeks at least to get it anywhere near perfect condition (weather conditions permitting) so it’s sensible to give it as much time as possible, and not hammer it pre-season.