Not on a 737-800 but as a basic rule, we tried to get our drivers to throw fuel in past minimum start % just as there was a noticable decrease in N2 rotation acceleration. Unless you are high and hot where thin air may make a hot start likely don't do it, you will save the company starters as they take the abuse. We determined that wear and tear in the hot section that some worried about was not a factor.
Not to mention the increased chance of a starter coming apart, if the shaft does not shear and a starter comes apart the damage it can do is extreme, those things spin at insaine RPM's.
It is a bad habit to throw fuel in past max motor.