commas of 2 primes, 31-limit
ratio = n/d
cpx = ln(n*d)/4
dmg = 1200*ln(n/d)/ln(n*d)
z0 = cpx/7.65 + dmg/10
z1 = cpx/5.9 + dmg/15
z2 = cpx/12 + dmg/7.5
z1 <= 1 || z2 <= 1

ratio	primes	exponents	cents	cplx	dmg	z0	z1	z2
134217728/129140163	[ 2 3 ]	[ 27 -17 ]	66.765	9.348	1.238	1.346	1.667	0.944
256/243	[ 2 3 ]	[ 8 -5 ]	90.225	2.760	5.666	0.927	0.845	0.985
2187/2048	[ 2 3 ]	[ -11 7 ]	113.685	3.829	5.145	1.015	0.992	1.005
531441/524288	[ 2 3 ]	[ -19 12 ]	23.460	6.588	0.617	0.923	1.158	0.631
128/125	[ 2 5 ]	[ 7 -3 ]	41.059	2.420	2.940	0.610	0.606	0.594
16807/16384	[ 2 7 ]	[ -14 5 ]	44.130	4.858	1.574	0.792	0.928	0.615
128/121	[ 2 11 ]	[ 7 -2 ]	97.364	2.412	6.995	1.015	0.875	1.134
131072/130321	[ 2 19 ]	[ 17 -4 ]	9.948	5.890	0.293	0.799	1.018	0.530
529/512	[ 2 23 ]	[ -9 2 ]	56.549	3.127	3.133	0.722	0.739	0.678
17249876309/17179869184	[ 2 29 ]	[ -34 7 ]	7.040	11.785	0.104	1.551	2.004	0.996
32/31	[ 2 31 ]	[ 5 -1 ]	54.964	1.725	5.522	0.778	0.660	0.880
2197/2187	[ 3 13 ]	[ -7 3 ]	7.898	3.846	0.356	0.538	0.676	0.368
6859/6561	[ 3 19 ]	[ -8 3 ]	76.899	4.406	3.025	0.878	0.948	0.770
125/121	[ 5 11 ]	[ 3 -2 ]	56.305	2.406	4.055	0.720	0.678	0.741
390625/371293	[ 5 13 ]	[ 8 -5 ]	87.871	6.425	2.370	1.077	1.247	0.851
83521/78125	[ 5 17 ]	[ -7 4 ]	115.626	5.650	3.546	1.093	1.194	0.944
48828125/47045881	[ 5 19 ]	[ 11 -6 ]	64.373	8.843	1.261	1.282	1.583	0.905
361/343	[ 7 19 ]	[ -3 2 ]	88.548	2.932	5.234	0.907	0.846	0.942
20511149/19487171	[ 11 29 ]	[ -7 5 ]	88.660	8.405	1.828	1.282	1.547	0.944
29791/28561	[ 13 31 ]	[ -4 3 ]	72.996	5.140	2.461	0.918	1.035	0.756
893871739/887503681	[ 19 31 ]	[ 7 -6 ]	12.378	10.304	0.208	1.368	1.760	0.886