Piort, you really have done an amazing job with the Ei.3 - it really is redefining the term "price-performance ratio" in the "entry-level" CIEM realm.
Those who are interested in my thoughts on the Ei.3 can check out my review if they want to: http://www.head-fi.org/products/customart-ei-3-acrylic-custom-iem/reviews/17672
Those who are interested in my thoughts on the Ei.3 can check out my review if they want to: http://www.head-fi.org/products/customart-ei-3-acrylic-custom-iem/reviews/17672