In part 1 of this series, the weight of a spey line that properly loads a rod was shown to be a weight dictated by power and tempo. The analogy used for this proper weight was a favorite book between the book ends. Moving on from this, we'll now be looking at the max and min length of the line akin to the two book ends holding up the weight proscribed above.

However, let's tackle one book end at a time, with the maximum spey line length for this Part 2 piece. The max length starts with- but does not necessarily fully comprise of- a length the caster can carry in his D loop just before the D loop catches water and sticks behind him. But before we fully get into this discussion, and because this out-of-water max length is highly dependent on how deep or shallow the caster is wading, let's assume the caster is standing in 30" of water so as to not confound this max length any further.