Hi,
In various GymnasticBodies social media I saw people doing exercises with straight legs, lifting the legts. Either in straddle or straight/pike position.
Right now I read at https://www.gymnasticbodies.com/relieve-stubborn-hamstring-tightness-just-5-minutes/ also about seated pike lifts.
Just curious: these kinds of stretches don't appear in any of the stretch courses. Do they appear in F2-4?