OP. you have to understand the comparisons being made, I saw a post by you, saying you loved the W3, and they are your first iem? Do you love the bass hump and shimmering highs of the W3?
The earsonics, while I love them, don't have any real sound signature, very neutral, and revealing though.
I would not consider trading them for W3's. But I'm not you, you may well miss the V shape sound of the W3. I don't know your listening experience, but it's a gamble if you don't know what you want. Many folks here have been listening for decades, and it's easier to discern what we're looking for, yet still often let down. This hobby can become addictive. Many of us chase the holy grail for a long time. If you truly love your westone 3's.......my advice is not to log on to headfi again. I own about 120 iems and cans combined, I am not alone, and many own much more. Dozens of amps, Daps. cd palyers, dac's it never ends, jump in the pool and enjoy the good with the bad, or be happy with what you have, I promise you, headfi is a wallet crushing machine.