@Bltizo
Your story has more holes then Swiss cheese.
I'm pretty sure my "story" has been a result of me carefully following the rumours, news and evidence of catapult development related to carrier development and construction over the better side of seven years.
If they were both reliable they could have just installed into one and place the other system into the following ship and do field testing while training the pilots at the same time.
It just don't make sense.
How on earth does that make sense. That is actually the complete opposite of making sense.
The purpose for their catapult competition is to decide on which catapult to use on the
first carrier. They're doing that because they don't want to make a mistake.
If they do what you're saying and install both catapults on two different ships to "field test" them then that defeats the purpose of field testing them entirely because you're committing both ships to a dedicated catapult type anyway, meaning one of them is going to end up suffering for it because they'll be tied to their catapult type for the foreseeable future until a major refit, meaning either the steam catapult carrier will have to have a whole dedicated steam catapult support line during its use, or the EM catapult carrier will not have its catapult be as reliable.
In either case, you are committing at least one whole carrier to be an expensive and inefficient platform that will either be using an older/obsolete catapult that will need to have a whole support line just for it, or be using a less reliable or less mature catapult that will impact the efficiency of the carrier it is installed on.
OTOH, it makes much more sense to stress test both catapults on land first, before fitting them onto any carrier, and to carefully decide which one to fit onto the first carrier to make sure the decision is one informed by extensive test and comparison results. It is substantially cheaper and less risky than building two whole carriers and blindly fitting them on.
I sort of understand where you think you are coming from, but the problem is you don't understand the Navy's thinking around catapults very well. I don't think you've been following this story for very long or very closely, so you don't have the base of information to make an informed analysis.