OK, I did some more research online. Seems there are a few different recommendations (from the tyre companies) depending on the type of vehicle, eg front wheel drive, rear wheel, 4wd etc with and without the spare. Here's what I've used, which seems to be the common strategy for a 4wd with spare ...

I don't want to pay for a fifth that'll never get used...

Thanks gents.

Yes I am seeing wear on the front outside shoulders. Glad it is not something I should be "fixing". The tyres aren't directional so that is not a concern.

Apologies if this has been discussed before; I tried search but didn't find anything. What would you recommend as a tyre rotation strategy? When I bought my 4wd (fresh import) I replaced all five tyres, thinking I could rotate them such that they would all wear evenly as a set. I did this after ...