Yes, I would load test each battery (remove the ground from each one in turn so they are isolated). If they don't test about the same they will be fighting all day long. (But, I don't think this has anything to do with how many times you have to turn the key...)
The Constitution needs to be re-read, not re-written!
If you can't handle Dr. Seuss, how will you handle real life?
Current oil burners: MB GLK250 BlueTEC, John Deere X758
New ride: MB GLS450 - most stately
Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510