Kerr Cowell looked at the gun turret in front of him, thought for a while, and glanced at Howard Lee.
"You go and rest for a bit first. Will six hours be enough?"
"Six hours should be enough."
"Alright, we'll start after six hours."
"Okay."
He then looked at the remaining three unenhanced options.
'Ammo Capacity', 'Firing Speed', 'Recoil'
Let's put the ammo capacity on the back burner for now; his current ammo capacity isn't too little.
Firing speed should be a higher priority to enhance.
As for recoil... let's put that aside too. After all, he won't be carrying this turret into battle, and as long as it doesn't collapse the ground beneath it, anything goes. Even if it's bigger than expected.
As for affecting him, it's even more unlikely.
He simply wouldn't stand next to the turret; how could it affect him then?