I'm not an exceptional shot, and certainly don't do precision shooting, but with all due deference have to say I am quite skeptical of a supposed 1/8 MOA improvement for dry tumbled cases. I am open to being informed, as long as someone else is buying the components.
Wet tumbling is faster (less than an our of tumbling), quieter, less likely to lead to atmospheric lead contamination, uses media that lasts forever, and leaves your brass shining like jewelry, slick and easy to handle, and the metal passivized to resist corrosion. If I don't splash any cleaning liquid on myself I don't feel like I need to shower afterwards. The clean insides of the cases make visual inspection of powder loads a snap, and that reduced effort adds up over thousands of cases.
Yes, on a sunny day, the brass dries faster if you put it out in the sun, especially if you are drying a lot of brass. But it's not necessary though. I've been cleaning brass lately and just laying it out on towels and rubbing it around for a few minutes, then pouring it out to dry overnight in my basement. I have a dehumidifier, but it is still a basement. If it's humid, I'll preheat the oven at a low temperature and throw them in there for a little while.
I can see lots of reasons to prefer dry tumbling, including lower up front cost and a higher tolerance for long tumbling times, noise, and dust, and a reluctance to leave brass out lying around to dry if you shoot thousands of rounds every week I guess.
And I suppose the need to deprime before tumbling might be an argument against wet tumbling. But I'd rather keep the inevitably dirty depriming a separate step, and in my mind, 1/8 MOA improvements in accuracy are getting into the realm of snake oil.
The big pluses for wet tumbling: less noise, cleaner brass, zero dust.