I received some preban G19 mags’ recently. They don’t feed with all 15 rounds. With 14 rounds they feed fine. They also are very hard to remove. I can barely push the magazine eject button. I knew they swelled to prevent accidental magazine drops, I had no idea they would be so hard to remove even on purpose. The three supplied magazines work fine. I'm thinking maybe some light lubricant or 'Armorall' or something on the exterior of the mags might make them slide out easier. Any other suggestions? Nothing came up on a ‘Preban magazine’ search.