Custom Contexts

I just installed Asterisk 1.4.29 and FreePBX 2.6.0 on CentOS 5 (ClearOS, formally Clarkconnect).

I have 2 companies in the office and want to setup the following:
Ext 200-299 to use Trunk A
Ext 300-399 to use Trunk B on outgoing calls

I have installed “Custom Contexts” and created 2 context’s,
Set All to Allow and change Outbound trunk to Trunk A or B.

in the user’s extension, I selected Context 1 or 2

Applied changes, but extension 300 is going out Trunk A

is there something I am missing?