Now is the z in zuki actually pronounced as a z sound (like in English), or is that just the new Kunreisiki way of spelling it (which completely confuses me!)?
By the way, what is the "nigori" rule anyway? I mean are all consonants "voiced" when another word precedes it, or only some?
From my Karate days I remember Keri (kick) becoming Geri when combined (such as in Mae-Geri (front kick), or Mae Keage-Geri (front snap kick)), and I have always known the tori switch to dori (as in morote-dori, of jo-dori).