Totally different animals:
- the Bluefire is a"regular" 47.5 hardness tensor in the same vein as the rasanter R47/48, the Tibhar MX-P, the Stiga DNA Pro and Platinum M, you name it. Very bouncy with a strong catapult effect, not tacky at all but somehow very grippy.
- The Bluegrip C2 is an hybrid rubber, way more hard and tacky/medium tacky, in the 50+ hardness zone. Way more controlable than the Bluefire, but also less speed. So it's more like any other hybrid like the DNA Dragon Grip from Stiga, the Tibhar Hybrid series like the K3, the Yasaka Rakza Z EH, Victas triple Double Extra, etc.