I ordered a flat of the Gamebore EVO's which were supposed to be 1200 FPS and felt wads. They wre pretty "HOT"to say the least. In fact I had issues shooting them in my Lnag and opening the gun afterwards.
I'm in the UK and shot the 21g felt wad Evo last weekend for the first time. I can confirm that (compared to my usual Hull Cartridge Co Comp X 21g fibre), the Gamebore Evo are much more lively.
There are a number of 21g fibre loads available - Hull Cartridge, Gamebore, Ely, Lyvale/Express and Fiocchi to name those I can remember! The Hull Cartridge is my preferred choice.