96 Mystique with 100K miles. The steering feels vague "on-center" and has to much play. At speeds above 70 mph I can move the steering wheel a couple inches back and forth without the wheels turning. Anyone else experience this or have suggestions as to what I should check. My mechanic says the steering is fine, but I want it to be more responsive.

1996 Mystique GS V6 MTX - PIAA bulbs, SVT shift knob, Firestone Firehawk tires, EBC Greenstuff front pads, Amsoil oil filter, Centerforce Dual Friction clutch, SVT flywheel, Amsoil synthetic transmission fluid.