Picking up our semi-regular Spotlight series, we're shining a light on Bristol's Grillstock Festival [https://www.ents24.com/festival/grillstock-bristol-2016/4574275] - now in it's seventh year. We spoke to Grillstock [https://www.ents24.com/festival/grillstock-bristol-2016/4574275] co-founder Ben Merrington about the story…