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A significant impact of pressure anisotropy on the plasma displacement associated with ideal Magnetohydrodynamic (MHD) stability is found. A heliotron plasma, such as a large helical device plasma, is analyzed. Simulations are performed using the equilibrium solver Anisotropic Neumann Inverse Moments Equilibrium Code and the ideal MHD stability code TERPSICHORE. Both codes provide a treatment of the pressure anisotropy by the bi-Maxwellian model. The ratio of hot particle pressure to total pressure $\lt\beta_\mathrm{h} \gt / \lt\beta \gt$ has been scanned over. Other simulation parameters have been chosen such that the simulations represent an experimentally relevant condition with an external, off-axis heating scheme. The radial location of the peak of the plasma displacement of the n  = 1, m  = 2 mode number has been compared to the radial location of the ι  = 0.5 resonant surface. This comparison shows that this difference in location increases monotonically for increasing $\lt\beta_\mathrm{h} \gt / \lt\beta\gt$ . These results provide insight on the effect of external heating schemes on MHD stability.