We have got a Wolf Lake 5 this year which is essentially the same as a BL. Not used it yet for real!
If I was you I'd get it out and put it up in the garden before you go away (do you have time?). Just the main canvas, not the inner/zig. It's HUUUGE and heavy, (totally different to a poly dome tent) although it goes up nicely it certainly takes some handling. We had quite a few arguments before we succeeeded but now we sort of know what we are doing and won't look like twits on the campsite.
Also one of our poles had broken shockcord and needed mending.
The main poles I think need to be "footed" before you lift the tent - we didn't do this and ended up flapping around under the tent trying to force the poles/pins into place with all the weight on them. (is that right Lucy?)
Basically you want to avoid any unexpected disasters on the campsite like the lovely couple we saw last weekend with a brand-new never-put-up motorhome awning, which nearly blew into the Atlantic and ended up ripped, stuffed in the van and going home.
Our plan for the car is to buy big 120 litre dry bags, put the tent bags inside and lash them onto the roof bars with ratchet straps.
Back up plan is to split-fold the rear seats and squash up the children!
Hey, good luck too, our first outing is next weekend >.