I owned a Fox that had been the victim of a catastrophic failure. I bought it after new barrels were fit along with a MillerSST. It had a minor glitch initially. A gunsmith who has sworn me to secrecy because he does NOT want to deal with Millers fixed it for me, after which I put a lot of rounds through it. In general, I'm not a fan of single triggers on which the safety works in any direction other than up and back in order to select which barrel shoots. The Miller safety does select the barrel, but it's all forward and back. forward for the R barrel. Back and in the middle is on safe. Back from safe will give you the L barrel. Like Ted, I prefer 2 triggers which in my mind are the best selective design ever. One trigger can fail, and you still have a single shot. I shot the Fox with the Miller mostly at targets (skeet and SC). It is an sst that if you spent enough time with it afield, you should be able to select when the bird flushes. Because most of my experience with the gun was on clay birds, since I knew which one I was getting first, I always pre-selected which barrel to shoot first. But once it was repaired, it was dead reliable. I no longer own that gun, but it wasn't because of any real problems with the trigger. It's just that I've owned so many DT guns that I'm more comfortable with them.
Someone asked me how frequently I select the rear trigger when I'm hunting. I can think of only 3 times I've done that while hunting ruffed grouse. I succeeded in killing the bird every time . . . but I'm not sure that I wouldn't have killed them had I stuck with the front trigger first. Pheasants . . . I've gone to the rear trigger on the flush a whole bunch of times. I can recall one hunt where I did it 3 times in a row. The first 2 worked. The 3rd one didn't, but it may have been a case of getting too cocky and stretching my tight barrel a bit too far.
