Tiger Moth flights are great fun, and if you have a PPL you will do most of the flying. However, if you've not flown in one before, I suggest a 20 min flight for the first time. Certainly don't book anything over 30 mins for the first time. P.M me for contact details of White Waltham Tiger Moth Flights, the season is just starting. Just got back from shaking the cobwebs off a Tiger.
I would be rather worried if I couldn't hear the customer's questions and all "our" Tigers have intercoms and CVRs.