Was on No 4 Puma Course and flew 3000 hrs on them. Went on an exchange tour with the French Air Force flying Alouettes (3 yrs after last flying the Puma). When they found out my experience level, they gave me a 2 hr refresher and told me to get on with it. Didn't know the French Pumas had plastic rotor blades. Came very close to spearing in towards the end of my first downwind quickstop!