I use their flat floats on the pole,but havent yet tried these,dont know if youve seen the dvd of the bloke using one in Hungary but they are using one in a deep pacey river ,the angler manages to steer the float around a buoy rather like steering a two string kite,which is quite impressive,I cant really see a great need to use one in the uk when a heavy stick float is usually ok,the main point of them is guiding the float around obstacles such as boulders in the case of the Hungarian river in the aforesaid video,maybe the Wye or such river they would be useful,if you havent seen the video ,try to,I believe its a cralusso promo. I saw it in my local tackle shop which stocks cralusso floats.