ACS 5.5 - ASA tacacs auth for both device admin and VPN - is this possible?

[srue]

As the subject says, I'm trying to see if there's a way to use TACACs for both device admin and VPN authentication on an ASA to the same ACS 5.5 server.   I know I could split up the protocols between RADIUS (VPN) and TACACS (device admin), I just need to know first if using tacacs for both is even possible.

TIA          

[srue]

I found this:

On ACS 5.x

Default Device Admin = Tacacs+

Default Network Access = Radius

here:

https://supportforums.cisco.com/thread/2036274

Is this still the case for 5.5?  Does that mean Tacacs can't be used for NetworkAccess regardless?