I would NEVER recommend digging everything above a Disc setting of '6'. This is ONLY to be used for serious RELIC hunting......IF AND ONLY IF,,,,,,, it is a very old area...and is littered with iron..... and your intent ALREADY,,, is to recover all non-ferrous targets. If you are at a typical park/school/church etc.... digging everything would be quite painful. TOO much trash! But boy..... would I love to recommend EVERY newbe to this hobby dig ALL non-ferrous targets for the first 2 years. A MUCH greater appreciation of discrimination would be ascertained..... but also a great education on what SO many targets read,,,, including the gold items that would be found with this detecting mindset and method. Now-a-days...... time is just too critical.
Pinpointing; If you are fairly certain that there will only be one target under the coil that you wish to pinpoint...... use the pinpoint function. If the area hunted is quite trashy......don't use the PP function; rather, use the 'wiggle' function (very short sweep).
Tom