Sally

1) I wasn't asked, and I don't know anyone that was. I have no proof that my bike is restricted.
2) With a 33bhp restriction fitted, yes you will be legal
3) Around £50 second hand on the org for a ecu.
4) Had the throttle restriction + airbox washers, then changed to the ecu.
Would say ecu is more economic, but not sure tbh.
Not much difference I noticed in peformance,as they are supposed to both be 33bhp.