Since you would only be taking a small amount of the total solvent off the top, to don’t need to worry about the sediment. Just let it settle after the tablet is dissolved. And with regards to variability, I think you will find MUCH more variability in measurements made with a graduated cylinder than those made with a micropipette. So long as you are within the range of volumes for which it is calibrated, a micropipette will be as accurate as a syringe.
That being said, a graduated cylinder is great for a budget solution!