I finally switched cables also reseated controller, just a curiosity, identical results. Also i never responded when you said I should tell LSI they should support the c300 Gull, I did tell them that their response was something like (I can actually look up the quote if you want): 'while your drives aren't in our matrix, controller policies have little effect in between brands and are usually relevant only to drive type, hdd vs ssd vs sas'

Considering if I follow computurd's exact settings I'll wind up with worse results than his drives (I've tried) and using my own best tested configuration the results aren't really close (my drives leave his fairly far back in the rearview mirror) I'd say this was just a level 1 tech response from someone who didn't have much experience with ssds.