Radio,

That's pretty good, I'm not a huge fan of the Smart tray myself. I generally get in about 4350 on my new 3700's. My old ones were crazy, when i first got them they could take 4800 every time, now they are at around 4500, still very good cells.

Try a regular discharge tray like the cheap integy version or a pro match tray and leave them on there for 5 or 6 hours or so ( I have gone to 10 hours without a problem), you should be able to squeeze a little more in there. And the more you get in, the more you get out

Chris