Sorry I thought you meant the Naish WS1. With the 1150, I think you'd have to make some shims and maybe some longer bolts, I don't think Naish supply any.
You can do this super ghetto wise by putting a thin piece of material under one bolt. In your case if you are too backfooted, you want more lift, so you want to lift up the back of your rear stabiliser. An old credit card with a holepunch hole would probably work good. Otherwise people have used washers etc. You probably only want about a 0.5mm shim to start with.
Example below is what the fanatic shims look like, it has a pretty similar rear stabiliser mounting system to Naish. Wouldn't be too hard for someone who is somewhat handy to DIY some.