am i the only one here that likes a dynamic belay?
occasionally i take big ol' leader falls.
i like a soft catch.
grigri's are awesome if you enjoy being short-roped and don't ever need to rapp on two ropes.
Being short-roped = belayer error.
You can use a gri-gri with a 2 rope rappel, you just need to set it up a little bit differently.