Best performing/value SSD or duo, at 40-100GB?

[Biker]

To date I have never run Toolbox on them.

However I have broken my most used array once and secure erased each drive before rebuilding (same time as I flashed to the most recent firmware) so that equals one secure erase and rebuild in over 6 months daily continuous usage.

Having said that it is essential to note that I have set up both arrays so that the vast majority of usage is reads. Writes are kept low on both of them. Obviously this usage pattern is very different from an OS array.