"You can count your vigilant hours - up to 10hrs worth."
Towards a PPL with a TMG Class rating (LASORS C1.2.) Otherwise 10% of the hours flown to a maximum of 10 hours. So only 1 hour will count towards a SEP Class rating.
Pre JAR-FCL the Vigilant was regarded as a Group A aeroplane because it was outside the UK SLMG definition.