How to alternate two 4Gs in a playlist?

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I bought BIABWS and DAOS in the sale and plan to run them (ultrasonic) in either a 12-hr or 16-hr playlist daily when I start. How best to alternate them, should I alternate them every 30 mins, every 2 hrs, every 4 hrs, or should I play 8 hrs straight of one followed by 8 straight of the other?

Before giving me the "don't run two 4Gs of the same type," I already know from other threads that DAOS+BIABWS is one of the few complementary 4G pairs that work even though they share a type and wouldn't consider running them in tandem otherwise. The question at hand is, given ultrasonic, what is the most effective way to alternate two 4Gs.

Hey dude!

DAOS is Type B, BIABWS is Type B/D. So as far as types go, you can run them together with no problem.

However, there's this journal of a guy trying them together and seeing no results.
http://subliminal-talk.com/thread-6092.html

And this was Shannon's explanation as to why that happened.
http://subliminal-talk.com/thread-5838-p...l#pid93507

But of course, you guys are coming from different places, and it might well work for you. You'll just have to try it. As for how, the recommendation is that they have to be played in chunks with a break in between (I guess an hour or so), like mentioned previously.