Well, I made the plunge and purchased a 250, and have had it about a week, and i like it very well, however the belltone is different and will take some getting used to. My 550 and 750 is much more clear when it signals a coin. Do any of you notice this difference or is it just my ears getting older. I bought it as a backup, but i am afraid it will become my number one detector. I am having a little trouble with the pinpointing, i dont seem to be as accurate with this machine yet. Anyone have any suggestions to help here. It seems like i am having to dig a bigger hole than necessary. My other two are right on target. Sure glad to be back posting again, its been a long time. Puter problems! Thanks, jery