Sadly, having Fast and Free and a pretty badge isn't going to protect you from postage defects if AP decide to take longer than the estimate to deliver your items.....which we know they can do. Sending most as large letter you are at the mercy of your buyers, as they will all have the question staring at them when they leave feedback. A lot don't know that sellers are getting defects if they tick no for arriving within the estimate. They think it's a survey type thing, so don't think it's an issue if they tick no.

Hopefully it all works out OK for you! Keep an eye on your dashboard though once this new system comes in next month.