@britshgigolo I never leave my bike without the disc lock, even as I pop into the shops. Although when I fill up for petrol I guess I don't use the lock but rarely use the steering lock if at all.
As far as insurance goes, it does have a steering lock, the theives broke it when they stole the bike. Can't see how they can disprove that.
All I'm saying is, I wouldn't pretend to think the steering lock does anything. A £20 disc lock takes just as long to engage and will be a much better deterent.