Hey guys I am calculating DSF and have been taught to shoot at Rtrans 75%. Going off the transonic range of Mach 1.2 - Mach .8, Mach .9 would be 75% of the way through the transonic range. The Kestrel instruction manual concurs with this and suggests shooting at a range where your remaining velocity is Mach .9. However, the measurement in my kestrel 4500NV model for rtrans75% is higher than Mach 1. It seems to be measuring 75% on a transonic range of Mach 1.2 - Mach 1. From what I understand: -True MV at Mach 1.2 -Refine your BC at 75% through transonic range -Refine again your BC at Mach .8 Is Rtrans75% measuring a transonic range of Mach 1.2 - Mach .8 or Mach 1.2 - Mach 1? Thanks for the help