Mahly, I wonder if you really know how much truth is in that little comment.

My view:

Which has more effect, nock travel or paradox?

You tune the bow so the end result is each arrow leaving the bow exactly the same way and stabilizing their flight as rapidly as possible. No matter the paradox or nock travel, shot to shot repeatability is more important to accuracy than nock travel. That goes for any bow, regardless of cam type - or even no cams at all.

As long as the nock travel isn' t EXTREME, it' s not that big of a deal.