Managed to get out today 28th January 2016 on my Roman site Spent only about 20 minutes as it turned in bitterly cold.The machine ran as expected I was aware of the small Iron bits but they did not interfere with the search. On my outward run about 50 yards out into the field I had a very clear sharp signal. .Recovered a Constantine 1st AE4 coin with the reverse of Two Soldiers holding one standard.Lovely green patina.I had to head for the car after that. I recommend this upgrade to the Trident 2 to anyone.It ran quiet with the small clicks when the small Iron was reached.I feel I could cover more ground with it that my previous machine not having to check on numbers.