You might wanna set the Specular color (the one still connected to your specular map) to white, to avoid needing to pump it up so much with an HSV node. That gray is multiplying with your specular map, likely making it black and thus not giving you highlights.

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.