... In not flaking and missing sessions like plenty of local ladies do. Visitors often need to recoup travel expenses so are much less likely to NCNS. The only NCNS that I have ever encountered were from locals.

Besides.... visiting ladies are a nice change of pace.

Never had a flake with my select group.
The only travelling ladies I've tried to see, canceled their visits a week or so prior to the scheduled visit.  
I'm sure every variation exists.  

What's your discretion problem? I'm only discrete when it comes to my lady I'm visiting and my safety.
I have no need to hide from anyone.

I tend to set dates with Visiting ladies more often than Local for a couple of reasons.
One is accessibility, touring ladies may come to my area once a month to once a year which makes me want to book them more.
Second is their availability, as ladies coming to my area are traveling to hobby most often than not and their availability throughout the day is more flexible than a local lady who may have other commitments or responsibilities.

only do outcall to your home. Have her wait around the block, pick her up in your car and hide her in the trunk until you're safely in the garage.  

 
But seriously, if I removed my ATF from the equation, I probably see 50:50 locals to visiting providers. I don't believe there is much difference in "discreet factor." Lots of pros and cons for both.

It doesn’t matter local or visiting, whoever are desirable and in my location, I see them

and then I see about 4-5 visiting favorites in the course of a year.   Sometimes I travel out to see them.

But I watch for touring ladies that are " have to experience " in my book. But I really like the connection I make with locals. They're not just providers....they become friends.

I like to stay local and build a trust with local ladies, but I certainly have seen some touring girls if they really peak my interests.