To be perfectly honest, I don't really get this 'bent' loop business. If you're after a small change in heading (he was) why not just make a very minor correction going over the top or even 3rd quarter to roll out pointing along the required datum. If you need a bigger change of heading, surely you put the roll in the upward vertical. Any errors in your roll will not make any change to the height that you then peak at, in addition, the fractional pause in your pull-up means you'll easily achieve you're apex gate height/speed. If you roll too early during the 1st quarter you're almost into barrel roll territory but with not enough height to half-loop out of.