in my shallow observation,

we can arrange the root into ..

MATRIX OF NINE.

1) it seem highly impossible, for all nine root number,

to appear in next nine spins.

in nine spin, a root may hit twice or thrice or more.

In two row of matrix of nine spins.

Seem that, a root that hit twice in first row, has tendency to hit again on second row of matrix...

(a root hit twice in first nine spins, may hit again, in next nine spins, thus bet 4numbers for nine spins.)

Also some root seems to hit, in every nine spins matrix.

its also highly unlikely that nine spins had only all odd root, or all even root...

odd root will repeat, or even root will repeat in next nine spins,

(as odd group or even group.