As a follow-up to Larry and Mike, I would also like to add the level of discrimination. My Ace 250 is constantly bombarded with the "slow recovery time"thing and I get a little puzzled. I run mostly in the Relics mode and I can take the coil and swing it like a golf club and as fast as I can and STILL get a good signal. Now I know that's not the same as recovery time-but let me go a step further. I have been in Coins mode and gotten a dime and nickel tone-which is the belltone quickly followed by the standard tone. Case in point number one. Now trash near the object is another point. HOWEVER, by being in Relics mode, which is just at iron nail reject, most effects of target masking and target "skip" are eliminated. Now you may get only ONE signal at a higher speed, but you WILL get a signal. I've even had coins near iron at least give a signal-no matter how weird-at this low disc level. THEN, by slowing down the sweep, the two signals will be isolated. I've done several posts called "Snipey and the Flying Ace"because I literally "fly" with the coil and, as Mike said, the little coils really snag the metal. Thanks for reading.