Ive been hearing some good things about sub tanks for your forks. Do they work as well as Ive been told? Ive been told that they make the top amazingly plush but still give the firm give you need on the big hits. Are they worth the money? Do alot of people use them? What is a good brand, that also has a good price? I hear there are some good knock off companies that sell them for cheap, are they any good? Ive got my suspension revalved, and its good, but will these subtanks take me to the next level? Thanks.