I have a dual extruder TEVO Tarantula with the extended bed. I have searched and searched for a profile, but have been unable to locate one. So, I created my own, and I figured I would share it here in hopes that people could use and improve it.
https://drive.google.com/file/d/0Bxp2rG ... sp=sharing
It has Fast, Medium, and High quality profiles built in, along with multiple material settings (although I have only tested it with PLA) , and it shows up as a proper dual extruder profile and can therefore be used in the dual extruder wizard. I tend to print very fast, and my profile speeds may be more aggressive than most people want, but I have had good luck with them thus far.
The only thing I am unsure of is the offset on the printer heads... I have measured many times with my calipers, and i have it set as close as I can get it. Let me know if anyone can improve the profile.