There is a reason competitive shooters, for the most part, are using wet tumbling with stainless pins. It cleans all areas and eliminates extra steps to post tumble cleaning. Important when you are processing a lot of brass. They have come up with some innovative ways to dry brass too.

Most are also using Giraud trimmers...

Me, I am still in the dark ages I guess with my 20 year old RCBS vibratory cleaner, walnut shell and some Ajax or Comet. Cleans most areas very well but I still find I need to wash and dry.

Some day I may catch up... Probably this year still as I have 1200 223 cases and 2400 '06 cases to get through from 2013 and hope they make it the whole 2014 season. 4 guns worth total.

Or you could just skip the whole mess and send your brass to (I am in no way affiliated)...

http://www.mountaineer-brass-processing.com/