"Check your GSF Backer Survey"?

Update #35 which just went out says we should check our Backer Survey to ensure we have recorded the correct address, even if we're 100% sure you have the correct address.

I don't see a "check your backer survey" button on Kickstarter.  How would I go about checking this?

Spiff, on the right hand side where the pledge levels are listed, find the level you pledged for. At the bottom of that little box will be a link to your survey

Ah ha, thanks.