Two infos on my side:
1/ A while ago i read on their forum that if your fps is over 350fps, you can reduce it by using heavier bbs.... WIN (no comment...)
2/ With my team we heard once some good feedbacks about one of their game...but we heard that they were using lasers...so we gently ask why, because we all know that it's dangerous and forbidden on all fields (and not only in Canada)...
The answer: "i sell them, so why i will forbidden them? And no, i have read on internet that it's not dangerous". WIN (no comment...). We sent him real papers from various medical sources proving that it's dangerous, especially if you are exposed by using a magnifier... NO answer.
What the next step? Ho! you sell aluminium bbs so you cannot forbidden them on the field?
There's no stuff in stock except the few things that are in store...and there's a lot of of very good canadian shops WITH real stock. So just go where you can have your stock in time and sell by a responsable seller.