SOURCE Product Reviews (Page 27)
The Source one had no such problems!
Never leaked - even under a full, oversized backpack.
Downsides- Closing the bladder's top can get tricky if you really want fill it up all the way, and it isn't comfertable to hold outside the backpack (but not having a handle saves space... so...)
All in all - the best bladder i've used. No leaks, No smells, the tube comes out, and it can stand a LOT of pressure.
Way to go!