My bike has SRAM Grip Shift 4.0 and I keep breaking the Grip Shifts on it. I think the whle 4.0 system is pretty beginner and I've been thinking about upgrading my whole drivetrain soon. I may switch to triggers but I'm not sure if one is better than the other. The SRAM I have now skips alot of gears and seems to be taking a beating, I may need something more durable. Please give me your suggestions. Trigger shifters seem like they would be more durable but may take slower to shift.