See, I get why @mason.brian says that, but I just learn better the hard way sometimes. That one big crash taught me more than a dozen careful dry runs ever could. For me, it's about knowing the system well enough to guess when you can skip that step and just go for it. Sure, I've messed up, but the direct feedback when something breaks sticks with me.
Dry runs might feel slow, but @mason.brian is right that they stop big crashes from happening. Those crashes can cost you more time to fix than just doing a careful check first. In the end, it's better to be safe than sorry.