Yes and no h0ughy
Yes, using it will keep you at the same pace but it won't help you track it exactly. Your polar alignment is aligned on the motion of the stars across the sky, ie follows the Celestial equator 0 Dec. The sun follows the ecliptic across the sky which only matches the celestial equator at the two equinox.
So no matter how good your solar rate is on your eq mount you will still get dec drift unless you drift align using the sun at midday. The main problem will be in azimuth adjustment. I think
