Tried g1, didn't like it. Felt like a brick.
I might be the fourth person or fifth person who suggest C-1?
I used both G-1 and C-1 before. They are different. G-1, the sponge is harder. C-1 feels much softer and has a bit more catapult than G-1. My favorite set-up for a while was G-1 on 5-play or 7-ply wood on the backhand side but C-1 on outer carbon blade backhand side. It worked for me for awhile but I had to do it because C-1 behaves differently than G-1.
Razka 7 soft is also a good choice.
I experimented a lot with my backhand rubber. I feel that out of all them, I like Rakza 7 soft and C-1 for their durability. And they are soft and bouncy but NOT too bouncy. Acuda S2 also feels similar.
Xiom Vega Europe is slightly softer than the above.
Baracuda is still a good rubber. Softer than C-1 and Acuda S2.
By the way, I also hate Glayzer. It is like the worst of everything. Either give me something I can work with in terms of catapult (like Tenergy) or just give me the damn Dignics 05/80/64. Glayzer is like the worst of both sides.