I used briefly an old 4 pod horizontal pack, I think it was ACI, not sure got it used.
No comparison to the NXe, with the old one the buckle dug into my stomach and my arms got caught on the pods when I reached for one. With the NXe I had full maneuverability and the pods were easily accessible.
Tippmann 98 custom with revvie hopper and 20 ounce C02.
Soon to have an Airgun Designs TAC-ONE.
Comfort, accessibility, maneuverability, doesn't slide down or from side to side.
No real weakness, accept reinserting pods, in game, which you don't need to do.
All together the pack was vert impressive, I got it from a friend for only $25, pods easily accessed, comfortable, Velcro isn't very loud, which can be a plus on not giving away the fact that your reloading. I wore the pack on my left hip, so the far right pod was in the center of my back, having them there allows me to reach the left and middle pod more easily, and it allows me to slide on my right leg and hip without any damage whatsoever to the pack or pods. When you release the Velcro the elastic pushes the pod right into your hand so there is absolutely no trouble getting them out. Although that same elastic makes it hard to get the pods back in.
I would say that if your a front man who throws a lot of paint, but not as much as the back or wing men, then this is the pack for you, low profile, comfortable, doesn't interfere with crouches slides or dives, and is capable of holding 420 paintballs, plus another 200 in your hopper for a total of 620, if thats not enough paint for a front man, then your not doing your job................chicken.