I am going to be hunting a school built in 1929, and I have had my ace250 for 3 weeks now and havent hit the silver. I think I should have a good shot here. My question was what would be the best setting to run on I have been using all metal at 4 bars of sens. and only digging the coin tones. I have yet to see the 8+ light up should I hunt at higher than 4 bars for the deeper silver. Thanx for any advice. HH

to date this is my deepest coin found with any of my detectors. so when i go hunting old coins & relics i tend to leave the sharp signals & concentrate on the scratchier signals even large deep targets have a scratchier / blippier signal in pinpoint.