Well I had a similar issue so maybe this gives you other options. I shipped right away even though the funds were on hold, trusting that they would be released as soon as the buyer received the item and left me positive feedback. Well he never left me ANY feedback, positive or negative and I got Paypal to release the funds by calling them once I had proof of delivery and they had 3 extra days after the delivery confirmation (to make sure the buyer didn't leave me negative feedback or request a refund because he was returning the item). So I was all ready to wait the 21 days because this guy was never going to leave me feedback (I think he's waiting to see if I am going to leave him negative feedback first (see my other thread, "how long do I have to wait...")). So as long as you ship it right away and have a tracking number (f you ship USPS, even Parcel Post, ask for delivery confirmation) and can prove it was delivered then you can get the funds released 3 days after delivery confirmation without waiting for positive feedback. Hope this helps.
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