My personal feeling is that it may cause more problems than cure. You can however MEASURE a starter draw, you need to beg borrow or steal a battery load tester using an adjustable carbon pile, AKA "old school"
What you do is, disable the ignition and hook up the load tester. Crank the starter about 10 seconds and just before releasing, carefully and accurately note the voltage.
Now without cranking the starter, turn on the load and crank in load until the voltage reading matches the reading you took on the starter. Quickly read the ammeter and that is equal to the starter draw.
This demos battery test, not the starter test
Some newer VAT meters have a clamp on ammeter which directly measures starter current
