Many thanks to Piotrus-g and to Barra for making the tour happen.
I listened to the H8p using the Apex Glacier as an amp connected to a 5.5gen ipod. I listened to a wide mix of classical, Indian classical, with pop and rock, plus a little dubstep. It's a very nice earphone, stands with other high-end multi-BA earphones, and it's clear Piotrus put a lot of care into it. I found it had a very good coherency to the sound and good timbre for instrumental and classical music. Cymbals, which are often a challenge to reproduce well, were no problem for the h8p.
The overall tuning was balanced to the treble side a bit. I found the bass to roll off a bit in the sub-bass range to my ears. One way to describe the tuning would be that the bass and lower mids were more matte, while the treble was glossy. It's a very competent and well-composed sound. I tried a number of tips and moved toward foam tips to help with a few points of treble brightness, which to be fair were generally not a problem for me--I'm pointing it out so people can understand in order to suit their own preferences. Overall, it's a kind of monitor sound that I feel will really match what some people are looking for in a high-end earphone.
Thanks again and these will be moving on in the tour shortly!