We just wrapped up a "Welcome-to-Hunt" Outing at three ghost towns in Nevada. The trash level in many spots in those towns is absolutely challenging, of both the operator's patience level as well as the detector/coil performance capability. A few good finds were made by people using a Deus, an MXT Pro, and M6, and an F19, and a few other makes and models were put to work. Overall, however, the Racer's did a splendid job of isolating old coins and 'keepers' in some very nasty iron and non-iron trash. In short, the Racer's performance, with the 5.5X10 DD and especially with the small 'OOR' coil, were eye-openers for both users and viewers.
I think as you put in more time you'll feel more comfortable with the different coils on the Racer. Personally, I seldom use the stock 7X11 because when I want to go to that size coil, I just grab my Nokta FORS CoRe. It's already to go, plus it balances better than the Racer with that size coil. I let my Racers get the job done with the 'OOR' coil, mainly, and the 5.5X10 DD when in less trashy environments.
What type of site[size=small](s)[/size] did you hunt to get the Indian Head, Seated Liberty quarter and Chauffeur's Badge? Great recoveries!
Monte