hey tell me whats up,i just got a 30,had a ace 250,my bro and i was out today,and he was finding 10 coins to my one,,am not new at this ,but i sure was being beat up, i was able to run the sen at 10 ,but i tried it 7/8/9/ it seems to work fine,i also ran in the all metal,,love the pin point on it much better then the ace,,but a little puzzeled about the finds,,thanks for any info.