ive been drinking alot of harp lagger and saved the bottles in anticipation of brewing my first batch of beer. the collar on this bottle is too close to the the top. on a practice run with my capper i noticed that the capper levers "bottomed out" before there was full pressure on the cap. instead of wasting 2 cases worth of bottles, i modified my capper. pried of the red plastic feet and put a small spacer between them and the heavy guage sheet metal portion of the capper, thus reducing the required space between the collar and the top of the bottle. seems to put a cap on he bottle much tighter than before, but i wont know for sure untill im done lagering(about 2 months from now).