FreeBSD pkgng with multiple repositories

[Coert]

Hello all,

Installed FreeBSD 10, and I saw that only one pkg repo is defined by default: 
pkg+http://pkg.FreeBSD.org/${ABI}/latest

I then wanted to install KDE, and saw it has no package in that latest repo.

After some googling I then added pkg+http://pkg.FreeBSD.org/${ABI}/release/0 
as an extra repo, and it worked.

Can I have both release and latest configured as repos at the same time? or 
will this cause problems down the line?

What is common/best practice in this scenario?
I read through the FreeBSD handbook on pkgng.

Kind regards,
Coert