You are worrying too much... just go and use your batteries, cycle them a few times. Disregard the voltage and pay more attention to temperature correcteyd Specific Gravity, and you'll do fine.
Charge up the batteries, let them bubble a bit to stir up the electrolyte so that it's homogenous and uniform, and measure the specific gravity per cell, and call it good.
Your topped off voltage will vary due to ambient temperature affecting the chemical reaction capabilities of the battery acid. Atoms vibrate or move faster the higher the temperature they are at. And move slower the colder the temperature they are at, hence voltage will drop slightly in colder temps, when battery is at rest.