I have done that on a 2009 as well, but that is a slow machine at this point. I don't think I've used it beyond 2014. I have a 2015 around that I still use and works perfectly fine, but so does the 2018 which is lighter. Neither need upgrades or changes to do they work they are doing.
I did upgrade someone's 2015 in 2018 with a bigger SSD because they needed 2TB and it wasn't available at that time (they were on 512) and they used it as a local buffer for footage before offloading. Because they only have USB3 or TB3 drives and no TB2 drives, the multiple transfers on that MBP are too time consuming to do in the field.
I did upgrade someone's 2015 in 2018 with a bigger SSD because they needed 2TB and it wasn't available at that time (they were on 512) and they used it as a local buffer for footage before offloading. Because they only have USB3 or TB3 drives and no TB2 drives, the multiple transfers on that MBP are too time consuming to do in the field.