ok, so i just upgraded from a base model mid 2011 iMac to a mid 2015 15" MBP. so. much. faster!!! anyways, over the last year, i bought several FW 800 drives since i couldn't utilize USB 3.0. Well now that has come back and kind of bit me. The FW drives have no USB 3.0 and my new macbook doesn't have FW. so the thunderbolt adapter will still be FW800 speeds, correct? it will only be as fast as the slowest interface? meaning it will still be the same speed as it was before, or will there be a bottleneck? if it is, it might be worth it to just get a couple of USB 3.0 drives? i am asking because my SSD is 500GB, and i have like 1TB in RAW photos alone.