PA design about load pull need help

Hi friends,
I am designing PA.I have a question about load pull.I know load pull is used for class A to find the optimum load,and whether it is fit for class AB,class B,...class F?if not,how can i find the load(opt) in other class PA?
Thanks

Load pull is applicable to any class A,b, AB etc.
The technique tell you about the power contours for the respective or all impedance's.
One point you need to understand is let say you did load pull measurement for one bias then that is valid for that bias only.
if you need to change the bias then you need to re do the same . This is manual procedure.

If you are provided with the library from the vendor then you need not worry about the bias as they taken care of it.
Check with them before you use the model.