"Bad" for you is a bit of a misnomer. Relaxed stretches alone can give you the flexibility you want, just much slower. They can also lead to a decline in strength and joint instability if not accompanied by other exercises. And if not done properly, they don't give you permanent flexibility. The only person who can recommend the best stretching method for you, is you. Your body will respond differently to stretching than other people, just like strength training or cardio work. You need to experiment and find the combination of modalities that gives you the progress you're after. Probably not the answer you wanted, but hey ho.