If I recall correctly the Platinum G2 is deemed to be an upgrade of the Platinum series Spey by adding some of the upgraded features of the Onyx Spey series rods, e.g. guides, etc, hence that is why the G2 series is priced closer to the Onyx series prices. I have no idea beyond that regarding features. Hopefully they will update their web site with a description of the G2 line in a roll out of the to the rest of the world. This is the first time that I went out and purchased a rod straight on the recommendation of anyone without casting it myself. I did it based on the guide who watched me spey cast his Reddingtons for hours and strongly recommended the Platinum as the right rod for me as continue to improve my spey casting. I can hardly wait for this weekend to come so that I can get out on the water with this thing and