Loaded Bill_S's "trashy park" pattern on my E-trac earlier in the week and had my first chance to use it this weekend for about 5 hours. Out of 26 coins found 7 were nickels; that's about 27%. Prior to adding his pattern my nickel percentage was only 2.5%. Granted, with only 5 hours using the pattern, it may be too soon to tell what the long term percentage will be. But an improvement from 2.5 % to 27% seems pretty significant. I did make a small change to his program and modified the nickel range to CO 12-16. Nickels seem to fall more in that range in my area.