Is it normal to have both alternating and parallel nodes?

[KDB42]

Its hard to see as these pics were taken from a web cam in my tent but I'm attempting a mainline. One side has two tops that are growing alternating nodes and the other side has two tops growing parallel nodes. I know alternating nodes are a sign of maturity but is this normal? Can one side be mature and the other not?
Edit forgot to add the pic lol!

 

[growsince79]

It happens. Pretty soon they will all alternate.

 

[KDB42]

Ok cool. Thought it was weird one side would mature an the other not but as long as its normal its all good. Thank you.

 

[Edinburgh]

Yes.