I am on week two of F1 but still performing week one of RC/PE1. I feel more like I am pulling up than hinging. Part of my problem could be that I am not using rings (they arrive Thursday) but instead using these TRX straps at my gym (see image). I have been studying the video closely and read some of the forum posts on the topic. When I get my rings I am going to try and start in the same position as the athlete in the video. He is sitting on floor with legs straight and holding onto rings directly above, then leans back, and lifts up into starting position. My current start position with these nylon straps was to just line myself up underneath them on my back, grab the handles, lift my butt off the floor, and try to hinge but instead I was doing more of a row pull up and not hinging. Prior to my purchase of F1, I was doing 5 sets of 6-8 reps of incline rows under a Smith Machine bar (then stumbled across gymnastic bodies.com and quit doing them to begin F1 training).