You can quickly select full or partial component loops and rings with the Modeling Toolkit.
 .
. 
             .
. 
             + double-click an adjacent vertex along the same path.
 + double-click an adjacent vertex along the same path. 
                
             .
. 
             + double-click an adjacent face along the same path.
 + double-click an adjacent face along the same path. 
                
             + double-click a parallel edge along the same ring path.
 + double-click a parallel edge along the same ring path. 
                
            To select a partial loop or ring
 + double-click another component along the same loop or ring path.
 + double-click another component along the same loop or ring path. 
                
            To subtract from a loop selection
 -click or
-click or  -click one component along the loop path.
-click one component along the loop path. 
             -double click another component along the same loop path.
-double click another component along the same loop path. 
                
             Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
 Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License