Best practices for making device-specific UI tweaks

[gzealot]

Whats Sencha Touch's best practices regarding making appropriate UI tweaks for specific devices? Some features are better fixed using SASS, some better fixed using ST's Ext.apply so I have resorted to writing a big if else block in each View js file, checking using Ext.os.is.Tablet/Ext.os.is.Desktop/whatever else and manually tweaking UI components using Ext.apply. This can get rather repetitive, so I was just wondering does anyone have a better way?

[tobiu]

http://docs.sencha.com/touch/2-0/#!/guide/profiles