Hatsan Sortie Magazine Performance

Does anyone out there have the new Hatsan Sortie? I was wondering how well the magazines are performing for you. Are they jamming or skipping shots? I did am internet search and found some who have nothing but magazine jamming to others who have no problems with the magazines. Do the magazines vary in quality or is lubrication necessary? I see Hatsan includes an envelope of grease with the gun. An email to Hatsan USA noted where this grease should be applied. Comments on the Hatsan magazine performance would be appreciated. Thanks.