I'm in the same boat. The Belfast yamaha dealer is charging £40 to remove it. Providing they don't pass on a list of newly derestricted bikes to the police and DVA, I think I'll just pay them to do it for me.
I don't want mine off because I'm a nutter and I want to do 120 mph on the back wheel or anything. I think those restrictors are plain dangerous. I almost got killed because I didn't have enough go to complete an overtake.