A couple of packs after work to try get the hang of power looping thru stuff. It became clear to me that one has to give the right amount of power and pitch up, plus the time you spend inverted to end up where you want, once you get to the end of the loop you will enter into your own props wash so you need to accelerate and move forward fast to have a clean exit, this is a fun thing to do. Good and not so good Lipos really show their true colors doing this, an old LiPo will not launch you as high as a good one, the difference can be quite a few meters using the same amount of throttle, time etc.. :)