Absolutely, in fact without a SIM you’ll be left in dust as those who have practiced and found the right lines in the SIM. There is a reason every professional driver’s use SIMs to prep for every race. Also just the sheer amount of track time you can get in the SIM is 100x what you can get in the real world. Getting fully prepared on the SIM is a great way to make the most of your track days because you can hit the ground running.