cannon hollowgram si

[TOMMYBB]

Hi guys
ATM I'm looking to get some cannondale hollowgram cranks for my srm spider. I need the Si version as the SL won't quite go through the srm spider enough to grab onto the lockring.
So I was wondering if anyone knew if the newer cannondale hollowgram si cranks are the exact same as the older silver version of the si's as I prefer the look of the black. I understand that the lip thing that goes through the spider to grab onto the lockring is slightly less on the SL version.
So my real question is if the lip that goes through the spider, does the black si have the same as the silver si or SL
Thanks in advance
Tom