Salt aggregration during simulation

[neetish]

Dear Sir
Can I try this approach mentioned by you in this thread using a different force field?
After reading the paper you mentioned and the post, It seems the modification is already included in the paper and it should work for high salt concentration for the charm force field, provided I can calibrate my system with this force field.

Ion Concentration Force Fields

GROMACS version: 2020.2 I am very interested in the effects that salt concentration may have on different biological molecules. This requires an increase in ion concentration. If I were to add Na+ and Cl- ions to achieve a concentration between 1-4M, the sigma and epsilon parameters of these ions must be changed in the force field. In what file do I change these parameters? Or, is there a file available to use in high ion concentration simulations?