When I first loaded them into the Loomis, it was instant joy. But now, after a few weeks of playing, hearing them through my rigs, recording with them extensively, and analysing/comparing to other recordings, I just plain don't like them.
Here's my analysis:
When I first put them in my guitar and fired it up, there was definitely a sense of "holy shit, these sound huge!". Huge always initially = good. Big tone makes you think you're getting more depth and wider frequency response, and it's not always (if ever) the case.
They are louder than the EMG's for a start. The output is just insanity in a box. They're drawing so much more of your playing nuances as a result that it gives the illusion of 'ZOMG! MOAR DYNAMICS!'... Compared to the 707 even (which already has a huge output) it feels so much more 'alive' and more of a direct extension of the guitar. This is, as I said, a great feeling. Initially.
Under the microscope, though, it really starts to fall down. On the website it even promotes "more lows, more mids, more tone". More, in this instance, is just more frequencies to get in the way. A direct A/B against a 707 reveals that it does indeed have more mids and more lows, with the highs sitting roughly equal, but the voicing of those mids and lows is pretty awful.
The 707 comes off relatively scooped by comparison, but at least it's scooped in a very guitar-appropriate region. It has an EQ curve that's very pleasing to a mix, and very pleasing to an amp. I also think the relative scooped sound is just an aural illusion because the blackouts are so much louder (you're hearing the midrange of the blackouts at a higher volume than you're hearing the EMG's midrange, as you go back and forth).
Just in case this makes no sense, here's an analogy: Imagine you have a hose pipe that is squirting a nice amount of water and everything is cool. You change the hose to a different type, and all of a sudden you're like "holy shit this is awesome! Look at how powerful this water is coming out!". Then when you take time to look at the water you realise that there are dead mice and and bees and bird shit and all sorts coming out with it. Yeah. That's the Blackouts.
They're not shit, though, at all. They're an alternative to something a lot of people don't like, and that's where they're making their mark. But for me; someone who analyses tone an AWFUL lot, there is something about them slightly displeasing in a mix capacity.
TL;DR I want my EMG's back.
I use blackouts for my sevens as I am not routing my S or RG, but I will forever be an EMG man. 85 fo life