make sure you use enough dawn so that when you're done with your tumbling process you still have bubbles. its what keeps the crud emusified and from depositing back on your brass. if you dont use enough your brass will come out a dirty grey color. no harm done - just do another cycle with more dawn next time. I just give a generous squirt - approx 1 tablespoon or so, however my tumbler only holds 2 quarts of water.
with the lemi-shine - LESS IS MORE! if you use too much you WILL get spots. i'm currently using about 1/10th of a tsp (0.5cc lee powder scoop) per 5lb batch of brass. Start with 1/4 TSP, and reduce by half every batch until you dont get satisfactory results, then go up one quantity. A bottle of Lemi-Shine should last most of us YEARS.
since yard sale season is upon us - go hunting for a old food dehydrator. i paid $5 for mine.
(pic from the web)
Once i'm done rinsing, i pour my brass onto a towel and roll it around to get the big drops off, then into the dehydrator for 2 hours.
Total processing time for a batch of brass for me is a little over 3 hours. 1 hour in the tumbler, ~10 mins of rinsing and sepertaing from the pins, and 2 hours in the dehydrator.
i have yet to find a dry tumbling process that will yield the kind of results wet tumbling will give you in this amount of time.
the bling is he thing
as an added bonus - as long as you deprime BEFORE You wet tumble - no more primer pockets to scrape! winning!