In this paper, we give a combinatorial description of the concordance invariant 𝜀ε defined by Hom, prove some properties of this invariant using grid homology techniques. We compute the value of 𝜀ε for (p,q)(p,q) torus knots and prove that 𝜀(𝔾+)=1 if 𝔾+ is a grid diagram for a positive braid. Furthermore, we show how 𝜀 behaves under (p,q)-cabling of negative torus knots.