OK Disc setup? [Branched from Re: To RAID or not to RAID, that is the question]

Thank you sooooooooooooo much for this. Hope your still here. Mind helping me with my config? Just want to know if this is a good setup.

500gb SSD - OS/Programs

240gb Sandisk Extreme Pro SSD - Conformed/peak files

4tb Lacie Rugged Raid0 - Media Cache/Previews

2tb Toshiba (3 650gb partitions ) USB 3.0 - Media/Exports

1tb Toshiba (2 500gb partitions) USB 3.0 - Project Files

iMac 27in Retina (Late 2013)

3.5ghz core i7

32gb RAM

NVIDIA GTX 775M 2gb

El Captain

Programs I use:

Premiere Pro CC

After Effects CC

Audition CC

DaVinci Resolve