The Stealth scoops are REALLY nice. I have the older model and it is a tank. Should work great for you. As far as the excal goes, I've had a few. You should be getting great depth with it. You have another one to compare it to, so i'm sure your settings are the same. If you are in fresh water, you should be able to have the sensitivity up to 9, not on auto though. Disc on 0 and your volume about 3/4 up. I can run mine at 8 in salt water if i swing it slow and steady. I you don't think its right, you may want to send it in. If it's under warranty, minelab picks up all shipping charges. I think they still do... Buckle in for the ride though. I have sent a machine to them that was 6 months old and the headphones were shorting out in thew water. It was clearly a manufacture defect.....However, because the stock knobs on my unit had also stripped out, I replaced them with Anderson knobs, which are awesome. Minelab tells me because I put aftermarket knobs on the machine I voided the warranty, costing me all service charges. Maybe if Minelab put better knobs on the machine, they would have never stripped, thus I would not have changed out the knobs. I've always been surprised that such large companies that have loyal customers don't understand that a unhappy customer really hurts them in the end. They should have fixed the 6 month old machine, sent it back and kept me happy, instead of trying to collect another $500 plus dollars on the machine.