Remove SEP components with 'Update Content'

Good morning guys,

I'm trying to remove features from an exisitng SEP 12.1.4 client installation using the automatic client deployment features in SEPM. What happened is we deployed the 12.1.4 client over the top of the existing 12.1.2 clients using the auto-deployment feature and things went well (to our test group).  I didn't realise however that I had included the Outlook features and the Firewall features in this install.

No problem I thought,  just follow the instructions for re-deploying the client features to remove the ones we want.  This seems to not work as expected and I cant figure out why.

To try and remove these features I've done these steps:

1. Remove Install Packages from client group
2. Create a new install feature set (Minus Outlook and Firewall Components)
3. Add a new install package for the group using the new feature set
4. 'Update Content' on the group
5. Force a few test clients to contact the SEPM immediately to get the new policy

The deployment settings are set to go immediately but none of them seem to go.  If I upgrade an old client (12.1.2) with the new client and feature set,  this works as expected.  I've left the clients for more than 24 hours with still no change.

So basically my question is - Am I missing some steps to force an exisiting client to remove features using the same deployed version?