Welcome Ricky.
Sorry to hear you got a lemon, but it does happen.
Since the Trails have only been on the market about two months, I've heard no mention of any seals wearing out. As Onemountain mentioned, there have been several mentioned, and pictures posted (mine included), where some of the guns have seals that were damaged during assembly.
Even if you get one with a bad seal, Crosman's warrentee service is said to be one of the best in the industry.
And with the Trail XL model, should you decide to fix it yourself, the replacement seals are not expensive, or difficult to change. In fact, the Maccari replacement seals are said, by those extreamly knowleagable in Airgun tuning, to be made of better, longer lasting material than the Crosman original.
Use the search feature and type in, "Trail XL" and read how many XL's are doing fine, and you'll also see the info on the few that had problems and what the solutions were.
Paul.