I've come to understand that 'Securely Garaged' means you have to own a house with a lockable garage. I don't think it means you have to lock your car away the minute you get home from work.
Mine is securely garaged, but i leave it out sometimes, usually when we have other junk piled up in the garage from other projects, like gardening and house cleaning. I also work at a construction site, which is secure with a man on the front gate, so i get secure parking for work as well.
My mate just signed up with LSV, which is who put me onto them. he's a bit of an insurance guru, and has read through their claims procedure and all their disclaimers, and it doesn't look any different to all the other major insurers. I think LSV have found themselves a niche market with people who have modified imports and can't get insurance for reasons other than their claims record.