I'm getting impatient to use this machine in a real world situation (as opposed to backyard simulations) so I'm going to take 'er coinshooting tomorrow. I'm going to try out the small coil as well. Any suggestions on some of the best settings to try out initially? Its a city park, so I'm sure there will be plenty of trash. I just need to get experience with it before fall and the start of relic season.