I'm doing OCR too. I wouldn't consider it an easy option as it is mainly theory (60%) plus an extended piece of coursework (10%) which I have found quite tricky. It is only 30% practical with 3 sports one team, one individual and a third of your choice each being worth 10% and marked out of 20, meaning you probably won't have more than 1 practical lesson (aside form core pe) a week - that's how my school have done it anyways. There are quite a few links between some of the theory and gcse biology which does make it a bit easier to learn and understand. I would do it if you enjoy sports and would find it engaging, otherwise you might lose interest quickly and you are only likely to get really high marks on the practical if you play at at least county level for your chosen sports. I love sports so am enjoying it as an extra subject but yeah its up to you whether you would find it interesting and worthwhile of your time, sorry for the long rant, hope it helps you at least a bit though.