The Daichii's are somewhat over-shanked. Similar to the Partridge CS10/3's. Unless you plan on mainly tying Spey flies, you may wish to nip some off the blind end for tying traditional classics. Obviously, the proportions of the hook will affect the proportions of the fly you tie on them.
While on the subject of proportions, I'll start with this pearl of wisdom; the length and shape of the tail you choose will determine the entire fly you end up with. Choose carefully! When you are beginning, you will find it useful to diagram the outline of the fly you intend to tie in actual size. Then choose your tail to match your diagram. I see a fair number of very good tiers continue to do this. I do not and I can tell you that my flies still often become an adventure. (I define adventure as "something you begin without knowing what the outcome will be".)