I've been limping along with a late 2009 iMac and am buying a new iMac now that they've (finally) been upgraded with T3 ports. The old iMac clearly has issues - frequent freezes with no clear pattern. Some files can't be opened or show corruption even though Disk Utility doesn't report any problems. I'm running Sierra but have some old apps/extensions/menu bar utilities which could be causing conflicts (tho no reports of clear conflicts) So although I have backup(s) for current iMac, I'm worried if I restore from Carbon Copy clone or Time Machine I'll also be installing problems on the new machine. I could manually re-install all my apps and licenses, preferences, etc. on the new machine (and docs through the Finder), but it will be a pain. Any suggestions? Clean machine manual set-up, or take chances on a restore (I'm leaning toward the former).