I believe a EBC with the ability to map boost at different rpms will allow me to controll the WG, keeping the compressor right beneath the surge line at lower rpms. I have studied the boost maps on a couple of engines here, and none of them are boosting 2 bar before 4100rpm. Mine is currently boosting 2 bar at 3750, so Im guessing some work around has had to be done on these engines aswell.

Fitting an antisurge compressor housing will clearly help with the issue. Its probably the best solution here, but it will kill turbo efficiency and take away some of the top end power duo to turbulence created by the antisurge design itself.