[golfgnome]

The problem with length and lie angle is that both are often misunderstood without knowlege of TGM. I never have used height or arm length to determine a golf club. I simply use a dowel and have the player build a right arm flying wedge. Then simply have them go to fix with said wedge in a comfortable position. Adjust dowel length and there you have a pretty good idea what length is correct.
Said another way, use your existing club, create right arm wedge, lower to fix and see if the club is flat to the ground and is it comfortable. I did this recently with a golf pro and he said, "I don't think I could hit it from here."
There is more than 1 acceptable plane angle to swing on and as a teacher/fitter I try to find the one that is best for the
student.
Watch a junior, most have clubs that are to long and to heavy. Very rarely are they "over" plane. In fact they are often under plane. I see shorter clubs causing over the top moves because the player does not have enough right arm to get to the ball.