I don't mind finding ProV1's on the course, although I would rather find ProV1x's.  I give the ProV1's to my brother since that is what he plays. He usually reciprocates with any 1x's he finds.

I play the Prov1's and friends of mine that use a different ball give me ones they find and I do the same to the brand they play.  So if you let others that you know what you play,  the same may work for you!!! 

Have you tried using the Jedi mind trick? 

I've found my fair share of Pro V1s, but only 1 V1x that I can recall and it was marked with "refurbished".  I don't mind finding Pro V1s though.  Somebody or some bodies have probably enjoyed all the Pro V1xs I have had a nasty habit of losing lately.

Easy. Take a black pen and add a little x, now it is a ProV1x.  LOL

Don't pick it up.  Leave it there until someone picks it up and is willing cherish and appreciate it for what it is.