Follow up 5 days later. Just the feel, sound, and tonal character of dropping that full step across the board has been super inspiring. Now that I've adjust my setup to dial it in a bit more, the feel and response of the strings is a subtle, but very clear, difference. It's changing how I approach my feel in cool ways, and it's resulting in some riff writing that has a different flavor than the stuff I write in E-standard.
Loving it so far and already learning some of our drop-D tunes in D-standard so I can adopt this without having to tune 'up'...