CCI Phantom-This is what I own and I love this marker dearly, it's a great gun for the price. However, it is a Nelson and you can't really compare them to LP cocker pumps because of the springing. Still, when broken in, Phantoms have nice smooth pump strokes, just not as light as the S6.
CCM Tube gun (no official name yet) pre-production loaner model (not prototype)--I tried this gun at SPE 09 directly from Melissa's lovely hands. Although I prefer the S6's looks to this, I would prefer this gun in play because it is halfblocked and therefore much shorter from the back of the grip. You can play tighter. Only disadvantage I saw with this configuration was that it had slightly more blowback because there is less mass attached to the bolt (no backblock). This is not a problem if you hold the pump handle.
RF Black CCI Phantom
14" stock barrel
Vertical 3.5oz CO2
Winchester 50rnd hopper
None, unless you want a different barrel. The stock CCM kit is as good as it really needs to be, and I like the taper of the current front.
Light/smooth pump stroke
Easy on paint (low pressure)
First of all, I do not own this marker, I wish I do but it's currently out of my price range. This is the smoothest and lightest (stroke) pump I have fired, although it ties with the CCM Tube gun. The epic smoothness of this gun comes from the low pressure springing, dual guide pump kit, and tight manufacturing tolerances employed in making this gun. It is a very high pleasure to shoot this gun. The autotrigger kit is a great feature of this gun, allowing both a high rate of fire achievable and idiot proof cocking. If you have used an un AT'd cocker pump, you may know that if you pump right after you shoot, and you still have the trigger pulled at the back of the stroke, the hammer won't cock. This is never good, as it requires you to either remove your hands and pull on the cocking rod, or in the case of a halfblock, pump again and double feed. The AT cam prevents this by resetting the trigger. The trigger is pushed all the way forward at the back of the pump stroke, making sure that the hammer cocks every time. It also allows you to keep pressure on the trigger and pump as fast as you can. When I played with this gun didn't use this feature much, since you can shoot this gun quite fast without even keeping pressure on the trigger. It is just so easy to let out a short burst. In fact, you can even sometimes slap the pump handle at the right rhythm and get it to cycle very fast, fast enough that you could mistake it for a semi. The feedneck on this gun is very nice looking and works well, it is clamping. I'm not a centerfeed person, but if you are used to centerfeed this gun will be a dream. I never broke a ball shooting this gun, as it's low pressure (around 3-400 PSI) and very nice on paint. This gun is quiet, and there was no burping/farting to be heard. The 86 degree frame comes with inset delrin panels, and is a great angle. If you want more meat, you can purchase Hogue rubber wraparounds for the CZ75 handgun, these fit on this grip. The .45 grip is just as fine, I also prefer Hogue rubber 1911 wraparounds on this.
This gun is truly top of the line for a pump marker. I recommend it to anyone that is looking for an open class pump, and has the cash.