How long did they last you Tobias?
Well, when I had my one ballast go bad from DDM, I think it put a lot of stress and shock on that bulb. Now that bulb takes 3 to 4 times longer to fully warm up.
Do you think I should just buy a new set of bulbs and be done with it?
If you got the ballasts and bulbs from DDM, call them up. They have great customer service. I had a ballast go bad, called them up, walked me through some troubleshooting steps and determined it wasn't the bulb, but the ballast. 1 week turn around and had a few ballast. Remember, their stuff is lifetime warranty.