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In the previous part 2 installment, TWO (2) hazards were discussed when trying to re-use the floating head line weight class for a sinking head. The Active-Line load appears to be a more telling story than the standardized effect of weight class. This part 3 installment is to explore what is behind Mystery door #3, an unpredictability we were left with from only having casted the unmodified final head in part 2. We will be chopping and assembling this unmodified head to get all 9 digits of the line matching zip code for that Zpey - or any other - rod. This is akin to getting both the right shoe length AND width size. At the end of this part 3, we will see behind door # 3 awaits some nice surprises, along with those that will make us ponder further depending on how far we want to go down the rabbit hole. Just as when we feel we are getting close to mastery, we are humbled when we simply end up as a better student.
Let's indulge in a short discourse here. Imagine one day you went to a shoe store looking for a light colored pair of shoes. Knowing your size, you approach the sales person and inform her the size, the color, and brand you want. To your surprise, she politely informs you that the industry decided to deregulate the standards in shoe size, and that the only way to know the right fitting size is to actually try many sizes in the chosen color and brand. You find that news rather astounding, but you begrudgingly give in and instruct her to bring several sizes that came close in approximation. You try on a few sizes until you find size X that fit. The purchase is made and you move on with life.
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.
Picking a proper loading spey line for your spey rod is not much more clearer than when I started spey in 2005. Part of the problem is today's commercial offerings provide one size fits all lengths without giving a clear guide how to fine tune them. This only leaves the typical angler wanting to get his proverbial spey line wet just as discombobulated as when I started. My aim in writing this article is to give that person perhaps some understanding what makes a line properly load one rod but not another; you know, giving the tools how to catch than actually catching the fish for the reader.