When i first got my car, there were only two choices, Standard or Max Range. Standard was around 93%, if I remember right. Once the slider update came out, I dropped my daily charge to 70%. Over time, I saw much lower rated range. My last road trip in June to Boston, I only saw 187 rated miles at 100%. Frustrating! Upon returning home, I started thinking... and decided maybe Tesla knew what it was doing initially. So I set my slider to 90%, and scheduled charging (not initially an option when my car was new, either BTW) to begin around 3am so it would finish before I leave at 6. Over the next month, I saw rated range increase 11 miles. I now see 198 at 100%. So I'm sure there had to be some pack balancing that happened. Whatever it was, I'm happy for it, since I'm making another trip to Charlotte in 2 weeks!