Yemenite חוליות of 3-3-3-4 (which is the pattern of the RAMA”K (R’ Moshe Cordevero) as well as the Chinuch ), one white wind before and after, 5 knots, long Raavad string. חינוך pattern. R’ Bentzion Twerski likes having one string instead of two since in his words, the זוהר says to do one string.
(The Meshech Chochma also says to do 1/8 Rambam strings, since it took Bnei Yisrael 7 days to cross the Midbar to reach the Yam Suf on the 8th day, and Techeiles Domeh LeYam, but not to nitpick).
R’ Shlomoh Taitelbaum also ties like this, but with Rambam strings.
Strictly speaking, the RAMA”K writes to do Tosafos ratio since four Techeiles strings represent ADNY and four white strings represent YKVK.
