You're welcome.
BTW, it's your choice, but if your laptop has the NVidia MCP79 chipset, the MX300 SSD will not give you the best speed possible. How do I know this ? Because when I wanted to put an SSD in my own laptop a few months ago, I decided to buy the MX300 ! And people here told me that it will likely not negotiate the best speed possible.
See this thread:
https://forums.macrumors.com/threads/ssds-sata-and-negotiated-link-speeds.2047851/
And then I canceled my MX300 order and bought the Samsung 850 EVO instead
Again, it's your choice, but if I were you, and I were spending all that money, with the intention of speeding up my MBP, I'd want to get the most bang for my buck, and avoid the potential hassle of returns/exchanges, etc.
[doublepost=1513808063][/doublepost]
Yup, you read my mind, treekram ! I remember you helping me with this issue a few months ago when I did my own SSD upgrade on my mid-2009. I wanted to make sure to point this out to the OP here, but you beat me to it