Glad you had a good experience. Talking with your drivers will definitely help, I know all my drivers like things in different places than they are SPAd to. The load charts can be a pain, too, they go by what's been scanned in so far so if they were printed out at 3am for trucks that leave at 8-8:30am there's a good chunk of boxes that are still coming. At least that's how I understand it as the charts seem less and less accurate the earlier they are printed out. Kind of a catch-22 cause it'd be great to know what we're getting as early as possible but if the information is just dead wrong then it's no help at all.
Once you get a little more accustom to how the charts tend to be off a bit, and how the trucks you load typically look at the end of the day, you can start to improve the load quality significantly.
One bit of advice that may have been mentioned already but bears repeating: management will always push you to be faster, just go at a pace you can sustain that won't get you hurt, you'll get faster in time.