Here is another issue with the spaghetti/strand model. Electroweak mixing implies that the W/Z mass ratio is the cosine of the weak mixing angle, and that the ratio e/g of the couling constants is the sine of the weak mixing angle. Thus
(m_W/m_Z)^2 + (e/g)^2 = 1
a relation that had been verified experimentally to great precision. With the spaghetti model, there is no explanation of this relation - none at all!