I have a few months old Z519 and agree. My 80# Ultrex has held me in some big winds and I didn't want the extra weight (why I haven't added power poles yet - still waiting to see if I decide I need them with the Ultrex). There might be times where the 36v would be nice, but also times (most all the time for me) where I like not having the extra weight. I had always decided I could go to a Ghost when they get the kinks worked out and get up to almost as much thrust as a 36v but still be with 24v.