Does anyone else struggle with Amazon's FBA Restock Inventory page?

I find the "Days of Supply" metric almost unusable for planning replenishments.

When sorting lowest to highest, it still includes:

SKUs with inbound inventory

SKUs currently being replenished

Graded / aged inventory

Slow movers that have recently had a one-off sale

In fact Amazon told me to restock 5 units for a listing that sells 30+ a month??

As a result, I spend most of my time manually opening individual SKUs, checking sales history, checking inbound shipments, looking at stranded or aged stock, and then deciding what to send and in what quantities.

For those managing a large catalogue, what page or report do you actually use for restocking decisions?

Do you use:

Restock Inventory

FBA Inventory

Inventory Planning

Manage All Inventory

Custom reports

Third-party software

What is your exact go to each day?

I'm interested to hear what workflows other sellers use because I feel like I'm spending far too much time playing detective before creating every shipment.