I have the silver dial version and the crystal looks absolutely fine on it to me from someone who owns 2 watches with Prof crystals.
If you don't want to get it modified then that'd be the way to go as the lighter the dial colour the less impact the crystal has on the appearance of the watch IMO. I think double AR on the silver one would be almost pointless.
I don't know if V6 get all their crystals from the same place but the one that came on my V6 CrPO was awful.