I chose the CS-24 mainly because I thought the fidelity would be better. Also, when the Fury sound was turned to maximum (where it seemed that a coyote would best hear the sound), I felt the call sound was tinny, thus detracting from sound accuracy. The Fury was a bit smaller and lighter, and they had a couple of more bells and whistles than does the CS-24, so there is a small trade-off. You can see the comparison chart at the FoxPro website, plus there is another nice comparison on the Allpredators website. I am not knocking the Fury, but I felt that the CS-24 offered more power and fidelity; but, this adds a little weight, so if you don't want to carry a lot of weight, a Fury-sized unit might be the better bet. Also, the CS-24 offers no volume control or digital readout on the unit, but I found that when the unit is placed 50 yards away from the hunt position, you can't change the volume or read the digital readout anyway, so I saw no real need for this feature. Also, I didn't like the weird battery charging feature on the Fury. The batteries heat up, and you have to keep watching the charge to keep from burning the thing up. The CS-24, on the other hand, requires that you remove and replace the batteries periodically, but the Allpredator battery charger is sweet. It charges the batteries automatically and shuts of automatically and even has a float feature. FoxPro should carry this item, but sadly, they don't.
Another thing: The CS-24 costs about $110 less than the Fury. I spent a lot of time choosing what I thought would be the best calls for me in California and Arizona and found that I ran over the 50 call limit. FoxPro offers additional calls (I chose 16 calls for $25 additional), but Drew Wilburne, the sales rep I worked with at FoxPro tossed them in for free, so my total for the unit was still $489, including 65 calls programmed into the unit at FoxPro. After reading the FoxPro owner's manual, loading extra sounds is possible, but it appears complicated, and unless you have some computer experience that would help you figure it out, I would advise that you get all the sounds you want when you buy the unit. But, that's just me. I didn't grow up with computers and tend to shy away from things I might screw up completely---especially trying to program stuff into things like the FoxPro. Drew Wilburne offered to walk me through any programming required to add calls, but since I don't hunt elk, bear, etc., I doubt that I will need more than 65 calls. I mean, how many different distressed bird calls do you need to call these animals in?
Since the CS-24 uses a heavier horn-type unit, it requires ten batteries, instead of the eight required by the Fury. I found that Allpredators offers ten 2600 NiMH batteries, including a great charger for $49. I also ordered a camo bag for another $25. It seems to be well-made, has a large interior pocket for the CS-24 horn unit, and six exterior pockets for the AC adaptor and any small stuff. Also, it has a shoulder strap that makes it easy to remove when you get to the stand. I have always used a back pack to carry stuff in, but found it awkward to put on, take off, put on, etc., and feel that a shoulder-carry type bag works well. But that's me..You might want to choose something else.
You mentioned you wanted "big sound." The FoxPro Prairie Blaster offers a LOT of volume, but carrying this huge, heavy unit might prove difficult. Also, you don't really need the amount of volume the PB produces. From what I have read, and from the DVDs I have seen, a horrendous amount of volume could well make coyotes suspicious....at least this is what I understand from some other varminting websites. Also, the PB costs around $700.