So i need a new external HD, decided on going with a thunderbolt drive since my USB 3.0 drives are messing with the WIFI signal in my place something that is infinitely more important then saving a few bucks. I have my choices narrowed down to 2 products, the LaCie 6TB 2big Thunderbolt Series RAID Hard Drive or the PROMISE Pegasus2 R4 Diskless 4Bay Thunderbolt 2 RAID System If i am being honest i would probably rather have the LaCie, mostly because it looks better but it's not a slam dunk, still on the fence. Eventually if i end up buying the LaCie i would probably have 2 of them in raid 0 with one of them serving as a backup of the other. My question is simple really, will i ever see a performance difference between thunderbolt and thunderbolt 2? I mean even if i had the pegasus with 4x4TB drives in raid 0 would i ever see a difference between that and thunderbolt 1? So, will i ever be able to tell the difference between the 2? The cost is pretty much the same when you consider i need to buy the drives for the pegasus and i need two for the LaCie, the big difference mostly is the look and the performance.