ETF Lawn Renovation Plan NZ – Overseeding, Scarifying, Core Aeration, Sand Levelling, PGR & Weed Control

My Etf lawnn is a year old and needs a bit of a refresh, overseeding, levelling and sand to help drainage.

Where it’s at: It’s been fed and has been growing well. Last weekend I put down a post-emergent of Etho and Meso to hit some poa and twitch, it’s starting to bleach and slow a bit now.

The plan:

This weekend: Start dropping the mowing height. I’m also thinking about applying PGR to slow the existing lawn and give the new seed a better chance.

Show weekend: Mow short, scarify, then core.
Top with plastering sand, then seed and level.
Finish with a pre-emergent (etho and meso), a grub treatment and a granular feed.
Irrigation is sorted, so keeping the seed damp won’t be a problem.

Where I’d love feedback:

Is a PGR worth it this weekend, or will it slow recovery after the scarify?
Should I seed before or after the sand?
Anything you’d change or add?