Put mine on today, yep they are heavy, but match the full scale. Wait till you get to the struts, so much fun. Neither strut was the same length and did not match up to the pre-drilled and mounted blind nuts. Nice generous slots on the struts, but not enough. I had to shorten one of them and re-mount the bracket with the slot. All in all, this is a fairly nice arf, not trying to bash H9 here in any way. Just need to improve some quality problems with the struts, maybe let the builder handle that part.