Yeah, the shoulder straps are just long enough for me on the padding. I'd prefer an extra couple of inches, but I don't feel any difference yet. Yesterday, I put a 3 day load in for a dayhike, probably just under 20 pounds.
On the way back, I strapped my wife's pack to the top of the Crown--very sloppy without real concern to center of gravity, and the pack definitely pulled back quite a bit. But the shoulder straps were comfortable, and once I adjusted the load lifters to account for torso collapse (it was frameless yesterday), it carried 30 pounds very well. I have no doubt I could go higher if properly packed, but even yesterday gave me no pain.
If you think you might be between sizes, maybe try it on and see what the load lifters do for you. Just a thought.