Sounds ilke digits were transposed.
Our Group Arrow 2 (200HP HersheyBar wing) best glide speed is 105MPH (ASI is in MPH) =91Kt: But 95 MPH (83Kt) over the threshold
The Arrow 4 (non turbo) that I also fly has a glide speed of 79Kt (ASI is in Kt =91MPH)
So the floaty tapered wing Arrow 4 seems to have a much slower best glide speed which fits with the Slab wing Arrow's tendency to drop like a stone with power off.(Which can in fact be a very useful feature on occasions.)
Clear ?(as mud)
Cusco