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The main gear leg wobble is normal.
The right main gear leg is the last to unlock due to the design of the hydraulic system. When it finally does unlock, gravity causes it to 'dangle'. As it falls, the ram works a bit like a pump in reverse and pushes a pulse of fluid back through the system - causing the left main to wobble too.
The wobble persists until the hydraulic pump catches up and starts to overcome gravity and pushes the main gear up into the wells.
By the way, you should also notice that the nosewheel is the first to unlock and in most cases, is already retracted before the mains unlock and start their dance. The sudden pressure change when the mains drop may allow the nosewheel to droop slightly for a moment, but it is lighter than the mains, so it doesn't stay drooped for long before stowing into its well.
It's also usual for the right main gear to be the last to lock down when extending the gear.
On another note, is it possible to 'extract' and post some stills from the video for those of us that don't have a fast enough connection to look at the video itself?
Damon
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