Well if it is 60 days as you mention I imagine someone planning to stay 34 days will have a flight out. I always thought it was 30 days for the flight booking but that's no big deal either, just book a flexible ticket or a refundable cheapie out within the period required.
Steve Greir Depends how much travel and associated cost etc. is required in the UK and if there's no negative history, W30 entry and extensions are usually granted