I am about to test this out
create a user profile on a workstation
in zcm dlu use the credentials specified below
fill in user for profile you just created
check manage if existing
now here is what is the key use deep freeze to freeze these settings
so when user logs in it already exists and since deepfreeze lets you write and do whatever you want it can update desktop etc... but will be wiped out when you log out ,but the base settings in the profile will not be deleted and hopefully spped up the login .I will let you know if this works if anybody has already tried this let me know