We have the strakes fitted to all our 205's. The effect is great, you really do need 50% less pedal input. You will probably notice it on the approach to hover when you suddenly realize that you've hardly moved your feet at all throughout the manoever.
I think the B3 is the only one fitted with strakes, I've flown B, BA and B" and they didn't have them.
Apparantly they are working on strakes for the 206 aswell, now that should really make a difference
