I thought that Raw used the stuff made by Stuart Taylor and they are a well known bunch.

RAW are agents for Stuart taylor (who make most locost championship chassis) I've just finished a IRS locorage (toyota) the chassis is slightly different to get the engine further back than with the X-flow, its meant to be a good chassis, i don't know yet but it hasn't bitten me yet. Raw now own the Striker rights which is meant to handle VERY well.