Okay, since I've had mine on for a while now, I feel like a rebuttal is in order...
- They seem to be nice quality units but are a bit heavier than stock (by feel)
Well, you really don't notice that when you're riding, and the bike still wheelies, so the extra weight doesn't seem to matter.

- The long levers don't look like they'll fit
They won't, inside the stock handguards. Good call getting the shorties!
- They mount easily in just a few minutes
Agreed!
- The pivot is a bushing-type like the stock levers, not a ball-bearing arrangement like some other brands
They work perfectly well. I never feel any stiction in the levers.
- The levers have a bit of up and down play - not sure if this will increase with age
Again, not something I ever notice when riding. Not concerned.
- Functionally, they don't seem to be any different than stock
No, they're just levers, after all. But they cost less than half of what the stockers cost, so if you need a replacement, you'll be thankful. You may not need to replace them anyway, because in a minor tip-over, they are less vulnerable than the long stock levers.
- If you remove the clutch MC mounting pin on the handlebar so you can slide the clutch lever closer to the grip, you could get 3 fingers on the shorty lever pretty easily.
I tend to use three fingers on my clutch lever as they are. Works just fine...