Regarding the issue of bass, rather than using a tactile transducer, I have found that two subs work great. The Realiser can handle directing the correct portion of bass to the subs. The subs create air movement in the room, and palpable bass action via the floors that enhances the bass experience reproduced within the headset.
Personally, I find several other PRIRs I have made in various venues to be more to my liking than the measurements I made at AIX, much as I like their recordings. To my ears the AIX PRIR is a bit dead and dry. The Acoustic Zen is my favorite. I also made measurements at Audio High in Mountain View, (forgot the speakers there), and several other high end shops. Nothing quite does it for me like Acoustic Zen, which has a depth and width of sound stage that I like a lot. Something else about the Realiser that is important to note is that it is capable of emulating up to 7.1 through careful repositioning of two speakers when doing your measurements. So a number of my PRIRs were made with 2.0 gear yet provide 5.1 playback emulations. That said, in some ways I still prefer 2.0 which, if done well, can provide almost as expansive a sound stage as 5.1 for music reproduction, it seems to me, and one that is often a bit more realistic than some surround experiences.
Speaking of 5.1 though, I highly recommend the blue ray version of LOVE, the Beatles remaster. It is one of the best recordings of any kind I have ever heard, and the experiences of listening to it via my Realiser is amazing.