[Suicide Junkie]

It should be noted that too much familiarity with stock can actually be detrimental to your play in a mod such as carrier battles.

Naturally familiarity with the interface, and how to do things is good.
You will probably not be hung up on your old "best weapon", since you are consciously re-analysing the weapons.

Its not the obvious things, but the hidden subconscious assumptions that you build up over time. Things like the "fact" that there can only be one weapon at the top of the hill. Or that you can have a single warship class to comprise 90% of your military, because it is the best design so far.
Or the importance of spreading your fire to cripple lots of enemy ships rather than vaporize one at a time.