dosley01
1000+ Head-Fier
You might also want to take a look at the Aurisonic ASG-1, it's a big 15mm dynamic that's about 90% of a custom in a universal package. They can be bought for less than $200 but right now there are only some brief impressions available on the Aurisonics thread. I was going to order a pair but spent my budget on a pair of ESW9s.
http://www.head-fi.org/t/589520/anyone-heard-of-aurisonics-custom-iem/90#post_8122809
http://www.head-fi.org/t/589520/anyone-heard-of-aurisonics-custom-iem/90#post_8122809