Nightcap is miraculous to me, and the several others I have let borrow it. I don't even run a counterweight or remote battery pack. Not sure why you'd want something else.
I love it so much, it's my default NOD base now, and I only use a helmet if I am likely to run into branches, get shot at (yeah, only FOF but still) or it is raining constantly. Helmets are great hats.
You MUST read the manual and understand all adjustments on the Nightcap or it will not work, probably same for others.
I have used various skullcrushers, so am discouraged by some of the above high dollar linked items. I have friends who have had very, very good results from bump helmets, if you don't need to specifically avoid the look of a helmet and just want to save weight.