The BK Rush and the Samsara are the same tip. Both started separating identically at about the same time. There were a lot of BK Rush's already made with that tip and it's taking a while for them to run its course. I believe Predator has switched to a new batch of Samsara tips or a completely different tip for its current production. I personally experienced the layer failure on the BK tip and the Samsara tip that I replaced it with. I'm currently using a White Diamond which I am very happy with (hundreds of breaks) and it hits, as stated above, just like a hybrid tip and not a phenolic tip.