That reading looks a lot better and the foam earlier may have been helping to keep the hydrometer floating higher than it should have been. And smart woman to suggest using the 222oz bottle for the test; if I didn't have my test tube for the hydrometer I would have been scrambling all over looking for a way to test it not once thinking of using the bottle itself.
Another thing you will want to do is calibrate your hydrometer. That involves filling your tube up with whatever water you are using to brew with (tap or if you buy bottled water) and placing your hydrometer in. It should read 1.000; if it doesn't then you you will need to remember to compensate for the amount it is off in all future readings (if you want to keep logs that are as accurate as possible). For example my hydrometer reads at 0.096 so I'll need to add 0.004 to all my readings.