I ran Naks during the GD era, and for the far back of places like the Capital Centre or Brenden Byrne Arena where the TS was way back on the risers, the CP4 guns made a more intelligable recording, and even with a few freqency artifacts, getting more signal versus crowd was the better compromise to me at the time. I did later move to the 2 gun/1 card combo indoors and 2 gun/1 omni outdoors with the MX100 mixer. That combo took the edge off the guns that most people don't like, at least to my ears.
However, in '94 when I switched to the AKG 460s w/CK8s, which were considered great short guns then, I started to find them lacking overall. The first time I used the CK63s at Phish NYE '94, I was blown away by how great they sounded in the boomy Boston Garden, and never used the guns again. After they sat in my closet for 7 years, I sold them in 2002 and have never missed them.
Since Nak never made a hyper, I would say that the CP4 is the only option for the original poster to get more signal versus reverberant sound, but these days we rarely tape in large arenas from the very back like in the GD days. I would say that you can still make a great recording with the CP1s in a simple DIN pattern in 90% of indoor rooms, so don't worry about finding the guns unless a pair fall in your lap.