What is the best way to remove tail light lens...?
 

Restoring my gsl-se and need to clean the inside of the taillights. I'm scared to pull on the lens to hard and risk breaking/cracking them. The original glue on one of them is still holding pretty good. Has anyone done this? If so is there a good way to remove the lens. I was thinking about using a heat gun....? Would appreciate any advise or suggestions. Thanks.