TRIM isn't a magic command that suddenly makes your SSDs haul ass, it improves subsequent writes to already written blocks. If you're pushing bandwidths that high (2 Force GTs in RAID-0, I know it's fast,) you're not going to notice that bandwidth and isn't going to help much for every day applications. It really is overkill, but we like that here at the TPU.
My RAID-0 has no trim and every time I run a benchmark, it continue to astonish me with 1gb/s read and write.