Seriously, if you had a 400 watt, you would be wishing you had a 600. I recommend a vented cooltube for heat control. Oh, wait....that's what you are doing. Cool. :-)
Wow. Stretchy. You don't want to top while flowering. i would suggest using a net to spread those long branches out since you will have to support those baby's in a few weeks anyways.
When we used to get high outdoors at a park or whatnot we would call it a "safety check".
Others:
Spark a doobie
Blow a hooter
Pull a binger
Get faded
420
Torch a blunt
Looks pretty strange. Usually stems will split when buds get huge with no staking, but that doesn't look like the case here. Could you post more pics? In focus.