Finally managed to dry out my tower cap farm. Apparently, a five tile wide drain on the same z-level drains slightly slower than my FPS with 200 dwarves, magma, and running water. Luckily, I just happened to have set up the drawbridge in an ideal place to work as an atom smasher, so I smashed away all the water I used to muddy the farm. Worked well, inside of half a season the water was shallow enough to set up permanent farms (I previously had to set them up next to my drowning trap) and tower caps began to spring up. I now have a fairly high yield tower cap farm, so it was definitely worth the time.
Speaking of the drowning trap, I put two new improvements in. A set of pumps hooked up to my power array now massively increase the speed of flooding, and 25 new pumps on the drainer allow the entire trap to drain in seconds. Which was a total waste of time, I haven't seen an orc siege in a year and half. I think I embarked a little too far away from their tower. Either that or the dark elves killed too many of them in world gen. Either way, my soldiers are constantly running off ambushes. It's kind of funny to see them taking down crucible steel armed dark elves with bronze armor and silver weapons.
On the subject of bronze, I'm finally set up to produce steel on a large scale. After digging out four or five veins of iron ore and simultaneously getting my tower cap farm done and striking a seam of coal, I finally have access to enough coal, iron, and dolomite to produce the large amounts of steel I need to prepare for cracking open the funhouse. Lots of funtm in the future of this fortress.