I KNEW mentioning down-wind turn would catch SOMEONE!!
Wily, have you got the message that turning in a constant wind has no different effect on the aircraft than turning in still air?
The aircraft has no idea what the velocity of the ait it is in is in relation to the ground.
Trust us!!
(P.s.- I have done just as you suggested- held in 150kts of wind. No change in airspeed up vs downwind- really!!)