Have a late 2011 iMac with 256 SSD + 2 TB HD, any way with use of software to turn it into a Fusion Drive?
I have done this with a 128gb ssd and a 1tb hdd in my 2011 mbp, have noticed it is a bit quicker but will prob take a while for the os to work out the apps etc i use most often but it does seem to work perfectly well.
hmm which method did you follow? i have the same setup as you.