The 6900pros are big and heavy. If anything the GZ are lighter but not much. They might hang down a touch more then the 6900s, but the 6900s have that ugly tweeter poking up into the lid.
Initial thoughts on sound: they have a fuller sound, but don't seem to be as loud, YET. I might have to make a amp adjustment, not sure yet.
I got a tune sent to me from a great forum member on the other forum. Ill plug that in today and see how it does. Don't want to push them to hard right now. They need some more air time
2009 Road Glide. 16 in Vindikta Wild Cats. Aquatic AV, Stinger 700X4 to MMatts, Audiopipe horns.
Ground Zero 7X10 in the lids w/ sspn.4 1000d, tuned with DD Audio DSI-2. S&S 106, lifters, push rods and AC. Drago 2. CycleRama 575. Progressive monotones -1in. 12in. HD adjustable rear shocks. Painted inner fairing. Tuned with TTS. Blacked out!