[tor-relays] Question on running bridge nodes

Hi, I've set up a bridge node in the previous few weeks, but have had to put a bandwidth limit on, as I only have 10TB of traffic per month before my ISP will start throttling me to 100k/sec. I wondered whether it was more helpful to the Tor network as a whole to have have a very fast node which hibernated every 12-15 hours, or if I throttled Tor traffic, so that the node was more stable. I'll confess that I'm far more au fait with the politics of Tor than I am of the exact ins and outs of how the technology works. Any help would be gratefully received. Thanks L