Areas with heavy trash requires way different discipline than wide open fields or areas with comparatively low trash. Machine has to be capable,operator has to know the machine at a higher level. The “gimmes” are just about non-existent. These areas are also where many coins live,but have been inaccessible due to old technology and the fact there were just better areas to hunt before. Modern coin hunting in public places requires us to go where none have wanted to go before,straight into the trash,or extremely deep if coins ARE that deep in the site. As stated,a smaller coil will increase your resolution at shallower depths.
Very nice pick,Mercs NEVER get old!