Just in case anyone stumbles across this while searching for next season, here's a wee update:
I decided to hire a bike rather than fly mine and have to deal with it for 3 weeks with only 1wk of that riding, which was a great choice.
Demo'd a bike from GBB via the Whistler booking system, rode a Gambler on Day 1 and a V10 carbon for the other 6 days. Cost around £300 more than flying my bike out (assuming I made the 23kg limit...), saved huge hassle, included crash insurance and I got to ride a top of the range bike all week.
They swapped the brakes before I arrived, looked things over each eveing, bled the brakes mid week over lunch when I requested it and I could ditch the bike every lunchtime and evening without having to worry about it getting nicked. Highly recommended!
Re the end of season weather, I have everything from glorious sunshine, to pissing rain and lots of snow at the top of Garb zone. But I packed for Scottish riding and all was well.
A great trip, if you get the chance to hit Whistler, do it!
There really are trails for everyone, just be wary if you hit the expert blacks/pro lines, there are some big features you wouldn't see across here!
Riding alongside bears was also great fun