I was having pretty poor performance with my P3S... so I did the ITElite mod. That improved things, but I still couldn't get over 500m so it's been suggested that the antennas in the drone get replaced so I figure while I'm there I might as well upgrade them and these look ideal
Shipping direct to Australia is a bit of a killer though I'm checking with the local distributer of FPVLR gear if they sell these first.