I am not in the school that says that more flow is always better. However, I do have quite a bit myself. I am an avid wavebox user - the back/forth does more than any flow pump could ever do. After the wavebox, I use a pair of Tunze 62XX (I forget) pumps as high as possible so that no sand will move or get disturbed. I turn over quite a bit from the sump and use Laguna in the 1800GPH into the tank size. This is on a 240G.
On a 120G, pair of 6105s, wavebox and 1200GPH to the tank.
For me, random and wavebox flow is many times more important than lots of static flow that is always in the same direction.