Maceear, Linkster was able to listen to my Piano Diacera's which helped him determine whether he wanted to go through the cost and hassle of upgrading. You need to do the same.
Upgrading is not cheap, the packing and shipping is a hassle, and it takes 4-5 months to get them back. Make sure you know what you are getting with your own ears before you go through all of that. Even the cost of a plane ticket might be prudent.