Thanks - so is that with a 4.5 you're doing 12kts+? I am using the Unit D/lab and contemplating the Vayu as an alternative. Wondering whether I can sneak down a size or not, I currently ride 3.5 (85%) and 5.
Power and range is imo similar to the units, just feels friendlier and a zilion times better when flagged.
I have the 5m and 6m aura 3 and happy with it so far. But tbh I dont see that many differences between the good brands now.