Not a review per se - but I had ordered a reshell of my shures from AAW and from a physical store here in Singapore. I tried out the off the shelf IEMs from AAW while at the store - including the "hyrbid" driver models and found them quite large but sounding really good. I had my suspicions about what "hybrid drivers" really mean - essentially they use a combination of balanced armature with old school "dynamic" drivers in the IEMs - hence the larger size. I did find a review which you can view at the URL below:
http://passionforsound.lachlanfennen.com/advanced-acoustic-werkes-a3h-iem/