I haven't tried TW, but I've had liquid from various sources, some known traders and some ebay sellers, and i find all my juice seems to loose it's flavour. When i first open a bottle, it's really strong tasting, but then it seems to deminish, ok tastebuds could be a factor here, but the next day, first vape of the day when you think it would be strong, nothing like the inititial taste. I've had some that the flavour has gone completely, although you can still smell it in the bottle. I keep my main bottle in the fridge, and transfer a small amount into 10ml a bottle for use. If i use it straight from the fridge you can definatly get more flavour, although far from full strength. So maybe temperature has something to do with it. Even my RY04 which is my favorite, is no where as strong after about a week. What about the people that went into the bulk buying recently, that's one reson I didnt join in, as i didn't want to be left with a litre of flovourless liquid.