Aluminum arrows are much more consistent in spine and weight than carbon arrows.
I have a set of 1816's that I keep for a tournament that I like to shoot in that doesn't allow carbon arrows. They are cut to 28”, and my draw is 27.75”, so that's about as short as I can cut them. They weigh 390 grains, with a 100 grain point.
I usually shoot GT Ultralight 600’s cut to 29” with a 100 grain point out of this bow, which is a 40# Bob Lee Legacy, and they weigh 308 grains. The 82 grain difference between these and the 1816's is the main reason I prefer to shoot them. We have a lot of 50 yard shots at our tournaments out here in California, and the difference in trajectory a that distance is quite noticeable. I think if my max distance was 30-35 yards, I would prefer the 1816’s.
I'm amazed that carbon .700's with 200 up front tune for you, in a very similar setup to what I am using. It's been so long since I tuned the 1816’s that I can't really tell you if they were easier or harder to tune than the Gold Tips. I don't remember much difference.