Reducing amount of WinAD groups

Hi everyone

Our environment is BO XI 3.1 SP6.

We are currently using three WinAD groups to import users to our BO environment. Now we want to reduce the AD groups to one.

The plan is to add all users from two of those groups to the remaining one group, update the AD in CMC, an then delete the two extra groups from BO.

We´re not using Enterprise aliases.

By doing it this way, are we risking that users will lose their reports, personal folders or current BO group membership?

Any thoughts appreciated!

Regards R