Check in the BIOS if you are booting from UEFI or Legacy BIOS. ACHI and UEFI are 2 settings crucial to Thinkpads and SSD Compatibility. I'm running 2 SSD drives (one of which is the same as yours) in my machine but I use the Legacy BIOS mode as opposed to the bleeding edge(atleast for Thinkpads
) UEFI system, which has no support (officially) for the Fingerprint reader. I have done the installation using both Cloning software and recovery disks, and both methods have worked out just fine - and I am hard pressed to point out any discernible performance loss by going with the older, slower Legacy BIOS. at most, it's a few extra seconds at boot, and I'm fine with that.
To be perfectly frank, Clean installs are a somewhat militant stance on getting a performance boost. The SSD is fast enough as it is, but some power users want to eke out the last drop of juice from their hardware, and more power to them. In my view, most users will not be able to tell the difference between a clean install and a recovery one week later, once you've got all your programs up and running. They will however have put in a considerable amount of time manually downloading and updating drivers and utilities. Might as well let the Recovery suite do it for you!
So if you've got those disks handy, fire up the computer and install away, but be sure you are running with ACHI enabled, and Boot Priority set to Legacy in the BIOS -