Hey Deano, Marty's nailed it.
There wasn't much out there, the JR cast ones with the logos haven't been made for a few years now and Burton haven't any in stock, however from the secondhand ones I've seen the flange is quite thin and prone to warping and cracking.
The IK one is nice and thick aswell as having the torque spreaders cast in making the area around the bolt holes 10mm thick.
I've got a mate that does computer engraving and graphic sublimation so I may have a plaque with the engine builders name or and RS2000 logo made up to cover the IK logo, I'll see how I feel about it when its on.
Just waiting for some stainless set screws so that I can correctly locate the gasket before fitting it.