HI, well im trying hollow holds for a while and i have trouble with pevlis position and activation. So here is my questions to this lovely community : 1) Should I have posteriot pelvic tilt during hollow hold ? For some time i didnt focus on tilting my pelvis ( and propably didnt ) and had lower back pain after keeping the position for 20-30 sec. 2) Sometimes if i havent tilted before raising my hands and legs i cant tilt my pevlis after doing so , is it only me ? ( finally! ) 3) I now tilt my pevlis before raising my hands and legs and everything is fine. Is this the right way ? P.S I searched here and on google for quite a while so plz help