User blog comment:Alemagno12/Strength Level System/@comment-25337554-20151025060644

My suggestion:

Level ε corresponds to the notations which has FGH Ordinal Limit  ε 0  to  ζ 0.

Level ζ corresponds to the notations which has FGH Ordinal Limit ζ 0  to  η 0.

Level η corresponds to the notations which has FGH Ordinal Limit η 0  to  θ 0 (=φ(4,0)).

Level Γ- corresponds to the notations which has FGH Ordinal Limit θ 0  to  Γ 0.

Level Γ corresponds to the notations which has FGH Ordinal Limit  Γ 0  to SVO.

 Level φ corresponds to the notations which has FGH Ordinal Limit above SVO.