The SELLER should ALWAYS leave the feedback first to the buyer WHENEVER payment is made in a timely fashion. The buyer's obligation is through at that point - the positive should be left THEN. FEEDBACK should NEVER BE USED AS AN EXTORTION TOOL BY THE SELLER. I NEVER leave a feedback first to a seller after I pay on time. IF they don't leave me one first after I pay on time, then - SCREW 'EM!!!!! THEY AIN'T GETTIN' ONE FROM ME!!!! Too many sellers are more worried about 'covering their ass' then keeping the eBay community honest!