Slides & Bottlenecks - difference in tone?!

Always meant to make a video that compares a bunch of slides and bottlenecks!! Here it is, made just for the fun of it... These slides do look and feel different but there’s not THAT much difference in tone, I think that any tone difference is in the mind and hands of who ever’s playing!! Hehe, got steel, brass, bronze, glass and even a really cool and new thing calledTribotone, made out of stainless steel and some kind of engineering plastics!! The future is here, haha!! Strings here is the Republic standard - ..