Just caught this thread. Someone was asking about whether the jack stand/bottle jack combo unit will fit under the SMB axle when a tire is full flat. Right after I bought the thing I took it into the driveway, deflated a tire to almost 100% full (didn't want to put rim to concrete) and it fit under there pretty easily. If it was tight you could move it towards center a little and it was fine.
I also like that you can "adjust" the base height with a pin.
I just used it to rotate the tires on my van (the guys at the tire shop said it would take an hour and I did in my driveway in less than that one tire at a time
). This is my favorite piece of gear since it gives me piece of mind and it works good. Plenty of power to throw the SMB up unsing one hand while reaching under the van. For those with a EB 50 layout, the jack fits upright in the rear passenger side "box" where the shower fittings are (and in my case also the 10lb powertank).
Highly recommended.