Why is the use of the crp made so complicated.
Set wind dir at top.
Draw line down to ctr. dot from above=wind speed (3 headed arrow toward dot).
Set track at top.
Place the tail end of wind arrow on TAS arc.
Read off drift (tail end of wind arrow) and apply correct sense.
Read off ground speed under ctr. dot.
To find w/v from TMG and groundspeed some of the above have to be reversed..think about it.