Stage 1. I think you could have put the little disk target even farther back...making people switch gears from hosing big targets to accuracy is always great.
Stage 2. I miss running through the tunnel, but it made the stage setup go faster. I would even suggest running only steel on the second bay, since that one always slows people down...or at least keep the pasting to a minimum. Since everyone has to stand so far back to allow for the initial rifle shots, it's always slow to get people down there pasting, especially with gloves on.
Also, I wrapped all the small disks with chains around the supports...but maybe that is my punishment for shooting HM. I don't know if hanging a length of chain down would help that out or not.
Stage 3. Awesome stage. The shotgun targets worked great. However, sometimes the stands would tip over or the backs would sink in, and this would cause repositioning, which would slightly change the stage from shooter to shooter. I don't know if having a flat metal tab on the bottom of the legs would help distribute the pressure more, or it could have a hole to stake at least the front leg in with.
Stage 4. Spinner was awesome. I think that the penalty for not spinning it needed to be stiffer however, some people just took one shot and moved on. We were the first squad on that stage and had some issues calibrating the steel poppers, I don't think the people who set them up calibrated them...but we got them working.
Awesome shoot, and extremely fun!