I have been having a few issues trying to get a prop here in aussie. I ordered it 2 weeks ago with my LHS and im still waiting. I got told today its on back order and not sure when it will be here. does any one out there know of a good APC supplyer in aussie that can have an 15/4 to me within a few days thanks

Good Luck Mate
I'm in Perth at the moment and I've noticed that none of the shops have much in the way of stock of APC props. (or 4-40 fully threaded rod)
I don't know if it's an end of financial year thing or a wholesaler is not keeping up with their stocks.

I'd also like to know af a good Prop Shop for APC as it nearly the only brand we use these days.

I knoe i`m a biy late but these guys here in QLD have nearly all APC props in stock including your 15X4 Wide Prop and will post anywere www.rcwarehouse.com.au
Cheers and god luck