More recently I have been trying the Pico with the Freq Show because the Freq Show are still just a little too forward in the mids for me, and the Pico pulls the mids back, while at the same time it boosts the highs that my Freq Show are missing.
So, I have been trying to use the Pico like an EQ for those two IEM as I add more items to my synergy review, which I will update soon by adding the Image, SA6, Micro Amp, TTVJ millett and D2 Boa. But, the Predator and Pico have been switching places between 1st and 2nd when used with the Freq Show for the past 2-3 weeks. I should note I only get this improvement in the Freq Show when feeding the Pico DAC from my laptop, but not with my iMod and Pico.
The mids problem is so pervasive with my Freq Show, using a wide assortment of sources and amps, that I feel it is a problem with the interaction of the Freq Show IEM and my ear canals, and not the amp's fault. I had posted about the mids problem in the Freq thread a while back, when I almost asked for a refund. A refit and amping them fixed 80% of the mids problem to the point that I could enjoy them with any amp, at the time of my IEM/Amp synergy review. And for several weeks I stayed with the Predator with them. But I think the Pico might fix another 3-5% of the problem with the mids ringing in my ears.