Ran my 4600 Shorty for the first time today. I did two six minute runs with 6.5T motor in 2wd buggy and still had over 7.7 volts left in the pack. I wasn't going easy either. I was getting ESC temps in the 150's and motor temps in the 130's (Fahrenheit). I had to take another 500 mAh out of it just to get to maximum recommended storage voltage(3.8 V per cell)!
Impressive to me.
I'd have to say I'm getting more run time out of this than I used to get out of my Protek 5200 stick pack. Your Diligence has paid off for me, Danny.