I play at DCSC, they are a low juice sportsbook, 5 cent lines.
SBR has tham at D. I think probably because they have only been around since 2008.
DCSC is part of the Platinum group (PlatinumSB/BetWho/DCSC).
I know some big gamblers that have also been playing with this book for over a year now with no issues. The site is very fast and easy to navigate.
Payouts are fast and customer service responds quickly to concerns. They also cover costs of deposit fees on deposits over $100.
I think its time they got an upgrade to C.