I've got the heavier (standard?) version, and it's great in really cold weather, or ridiculous gales. Can get a little warm if you run hard, or if the temperature is much warmer, but it's been a blessing the last week. Would imagine the light version might be better for more regular use?
The heavier version came up trumps in the gale on Sunday night - barely felt a thing, had the hood all done up with a cap underneath (wear specs, so need to keep water out my eyes). Front pocket comes in handy, too. Would deffo use it up on the hills too.
The Bus - same problem for me, I was 3st heavier when I got my smock, and was worried it might flap about a bit - turns out to be fine, no bother, just cinch up the waist.
Edited: 23/01/2013 at 19:36