Thought I would try out a Sandisk ssd being as they are a major name in flash memory, I can see now that was a mistake. If I run a benchmark on the drive it seems to run dog poop slow. After checking these forums, I can see why (trim not fully functional).
I’m not going to sit around waiting for Sandisk to come up with working firmware. Exchanging this drive for a working Crucial M4. This is quite disappointing.