When should I lst after FIM method?

[Smokeytit90]

So I wi use the FIM method when there is 3-5 nodes . I will be training with lst . When should I start lst ... Straight away ? Or should I wait for the stems of the new colas to develop ?

 

[Bmiranda]

So I wi use the FIM method when there is 3-5 nodes . I will be training with lst . When should I start lst ... Straight away ? Or should I wait for the stems of the new colas to develop ?

I am new but I do straight away after fim or top.