Hours are good. Even general knowledge of sectionals and other trivia that was never emphasized came up on more than one occasion @ primary.
It seems to me on something like crosswind landings you get many chances to master the basics in primary. As it was said, many aircraft require you to land in a crab b/c of wing/ground clearance, assymetric wing stores, some nosewheel steering systems, shipboard concerns, and others.
Every phase, aircraft, and squadron will require you to relearn at least some skill or procedure (usually many). You will learn the (new) way to do something and rehearse it until you're flawless; it's your job.
The benefits of flight time (landings, confidence with new airspace, radio proc, stick/rudder, comfort in the air, airsickness tolerance, instrument procedures, etc0 far outweigh any possible negatives.
goodluck