60% expo in already & dual rates, the biggest problem is the tip stall it's very sudden & you can be quite fast if there isn't any breeze to fly into.
The extra drag seems to have tamed it a little but even my OS56 powered one was a handful to land.
This one has more than payed for it;s self as far as flight time fun & enjoyment goes & it has certainly made me a better RC flyer esp in the landing department but if it's not 100% it bites you !!.