I many be wrong, but I think my inductors are OK (not optimal, obviously) the way they are. They are oriented in different directions and don't "aim at each other." Besides, if you look at the pre-built crossovers that many of us buy, the inductors are even closer together than mine, though the LP coil is turned slightly more the the left. See?
Tonight, I'll clear off the mess on my bench, set up my "testing rig" and run all the crossovers through the paces with both a woof and a tweet. Then it's time to start buttoning up cabs.
Why am I not done? Because I ran out of heat shrink tubing. To be more specific, ran out of the size that fits over 14-16 gauge crimp-on terminals. It acts as a strain relief; been doing it that way for years and at the last minute, I'm not cutting any corners. Got the crossovers wired up and mounted, got the woofs mounted (I love Recex/Kreg screws!) and ran them all with the backs off. Good Lord, these things are LOUD. 
And all I had was my laptop feeding directly into the power amp; no proper input level to get a proper signal in/out of the amp. My ears were ringing and I could feel the snap of the snare in my chest...and the cooling fan of the amp wasn't even running. 
I took a look at the woofer cones and there was barely any movement. I'm gonna love these things! Had the crossover on the amp set at a 105Hz/24db highpass, btw.
This is just the final piece of the puzzle...just trying to do everything as well as it's possible to do. But you hit the nail on the head with the "Become a way of life" comment. These cabs have occupied almost every minute of my considerably sparse free time. When you can only work on them 2-3 hours a night, it takes ahwile to get from one major step to another. There are so many little nitnoid details in tops...building/wiring/installing the crossovers took almost as much time as building the cab itself, for example. I'm looking forward to the Titans. Nice, straightforward wood construction, no electronic piece to worry about.
I listened to them in the garage, with just the laptop plugged straight into a Crown XLS1500, highpass at 98Hz. I'm amazed at how clear and defined they are...and there's not a hint of EQ on them yet. They most definitely need EQing...mostly in the midrange area and I think I hear a bit of "boxiness" around 250Hz-ish. We'll see what the RTA says when I get them out in the backyard this weekend. That said, it's pretty impressive how well the woof and tweets and crossover all work together; it's obvious a whole lot of time, trial and error went into component validation/selection. 
