When I first started kegging, I was really big on force carbing.. because I was impatient. What I do now is bulk prime in bottling bucket (Because I make bigger batches than can fit into a keg) and then cap the keg and hit it with about 30PSI to seal the lid. I let the keg condition just as I would bottles (3 weeks or so) and then serve.
This method does a few things that i like:
Saves heaps of CO2
Raises the ABV by about .5%
Forces me to wait a while longer, so the beer gets better
The only drawbacks are:
Takes longer before you can drink (good thing..see above)
More sediment (gone in the first pint usually, always by the third pint)
This Isn't Nam Smokey, There Are Rules.