That's pretty much it brubble... if you were doing 2.4 and 3.65, you could use one of Alpha Antennas products... but if you're concerned about weight, size, then you should avoid these antennas. There's really no way to have a smaller antenna size/weight when working with 2.4GHz and also having a decent front to back ratio. Then you stuff a couple 5GHz elements into the enclosure and it's even bigger/heavier.
>how does the signal quality of those KP compare to the cambium dual slant 2ghz panels?
Other than the cambium dual slant 2.4ghz not being dual band they are on different towers and I don't have a way to compare them fairly right now (no customers that match both distance and azimuth). They seem to about the same so far on 2.4Ghz. We also have some ePMP's on ubiquiti sectors and they perform OK also, no complaints really but again, they aren't dual band..