I have been tossing around the idea of purchasing a abrasive blaster. My first thoughts were to purchase a medium sized cabinet blaster, but i also have a few larger items like a rear end housing and such i would like to clean up. Plus i like the idea of a portable unit for much larger jobs. While looking for pressurized sand blasters i also found "soda blasters". the reviews i have read say the soda blasters "easliy" removed all debri except the most stubburn rust and coatings. The soda is much more gentle than the sand for alum, but i could also use corn cobs or walnuts in the abrasive blaster. What are your thoughts? Soda, abrasive????? Any experience with either one?