While I'm not sure if chaining from node to node would be a good thing or not, I can say that our GP regen rate needs SERIOUS work. I have this great ability to help make my shard harvesting a bit more efficient, but I can only use it once ever 10 mins due to my horribly low GP regen rate.

Even at higher levels, I have a larger pool, sure. Which only means I can use that ability twice before having to go back to the once-per-10-minutes.