Sorry you aren't loving your mini...not everyone does. That is one reason Rob makes a variety of mods to fill our needs. Your best bet is to sell it in the classifieds but CAUTION:
There are some scammers there like anywhere else so I would advise selling it only to someone who has been around and is well thought of on the forums..less risk. OR the REO forum has a thread for trading. Someone else may want to do a trade....Might be just me I guess, but I wouldn't even ask Rob to do a trade. He is a nice guy and all but it IS now a used mod..just sayin'.
Here is a link to the Trade thread:
http://www.e-cigarette-forum.com/forum/reos-mods/162302-reo-swap-thread.html
Good luck and best wishes!