I want to begin a new stretching routine immediately after finishing the SFQ active exercises, which always end with 'Harvesting of Qi'. Is this okay? Or should I wait 30 minutes before doing my stretches? Note that my stretches are not a type of qigong, they're from the DVD "Forced Relaxation" by Pavel Tsatsouline and basically they involve muscular tension and relaxtion in alternating cycles to facilitate the stretch routine.