[jQuery] ul.nav a VS. .nav li > a

[jQuery] ul.nav a VS. .nav li > a


Hi,
yesterday I read an article about jQuery performance. In one part the
author talks about selectors and uses
.nav li a
as an example. He states that before jQuery 1.3., the selector
ul.nav a
would have been the best way to get all links in the list. In jQuery
1.3., due to the inclusion of Sizzle,
.nav li > a
"should" be the best way. He doesn't mention any speed tests though,
and only briefly explains that the reason for this is Sizzle's way of
walking through selectors from right to left.
Can anyone confirm this "theory"?
Thanks!