Well, I picked up my new Lazer HP today. Went to go mow a commercial account with it. Had been mowing for about 20 minutes and noticed the ride wasn't so good anymore. Upon further inspection the right rear tire was flat. Great!!!!! Dumped in a can of fix a flat because that's all I had with me and finished the job. so after getting back to the shop I put some air in the tire and it's leaking slightly from the middle of the side wall. Bummer. Do you think that adding slime will possibly fix the issue or do I just need to bite the bullet and replace this tire? Opinions are appreciated.