Not trying to throw the spanner in the works, but the companny I worked for a while back was looking at trading all their B3s for Koalas - mainly because of the waiting time for service from EC... Went so far as going to the factory in Italy and doing the whole shin-dig with our chief pilot and engineer...Unfortunately, with the finiancial woooooops, it never happened
...... I have no idea about the Koala or the 407, but I know the 350 backwards and I love her....