The walkout is the most underappreciated part of the squat to most lifters it seems.  I encourage you to practice walkouts as if you were in a meet on all of your sets regardless of the weight.  When we do walkouts with 100-130% of our max we will then hold the position in a 10 count and then rack the weight on command like in a meet.  Repetition makes you remember.  Give these a try.