I need some help I have MacBook pro 2012 with 500gb HHD 4GB of ram and dvd drive, I have 240 SSD Crucial , SSD caddy adapter and 2 modules of 4gb ram for Upgrade my MBP I like keep the original HDD but someone tell me that for better performance I need to put the SSD where the HDD is now because the connection is faster and move the Original HDD to the new Caddy adapter because that DVD drive connection is slow any suggestions please are welcome thank you..