Yes you are right. It is 30 hours; the 70 hours thing must have stuck in my mind from something else?
However, 30 hours and a years membership is still only £75 per hour if all flown within the year ... A cheap, fun and instructional way to gain 30 hours I'd have thought? The training is free as it's done within the club and the TMG GFT is around £100. Bloody good value!
SS