Shoot Aurora 800 at 400 or 500 ISO?

I love this film stock but it is not DX coded and I want to use it on my favorite P&S.

I found DX code stickers but I only found up to 500 on Amazon. Yes I can get 800 stickers from china via eBay but it just takes longer and I’m curious at the results I would get using 500 stickers.

If I was to shoot it at 500 what’s the risk of just having the lab develop at box speed of 800?

Or should I shoot it at 400 and ask the lab to pull it one stop?

I have no experience pushing and pulling film so any info is helpful!