I've been a vapor for about a month.I have tried several ry4s from several different vendors.one of them i could only get in a cartomizer and it is really good.I dont know if it is the same as the ry4 of the past but it fits the description.I cant really describe the taste,not real sweet,kinda like spicy or something that makes my tongue tingle,very nice!Is this the old ry4?none of the others have this flavor/sensation.some taste like perfume,others taste like dates or prunes.Nhalers ry4 and r why for not is very good as well but lacks the tingle.Anybody have an idea what it is that causes this?